Images de cytologie Flashcards

1
Q

Gynéco

A

Cellules endocervicales sur un frottis conventionnel: bordures cytoplasmiques distinctes avec nid d’abeille ou apparence en piquets de clôture lorsque vues de côté.

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2
Q

Gynéco

A

Cellules endocervicales sur une préparation en milieu liquide.

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3
Q

Gynéco

A

Amas de cellules endocervicales sur préparation en milieu liquide. Peuvent donner l’impression d’atypies mais les cellules en bordures sont normales et en variant le focus, on voit que les cellules sont espacées régulièrement

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4
Q

Gynéco

A

Cellules endocervicales sur une préparation en milieu liquide. Peuvent beaucoup ressembler à des cellules métaplasiques.

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5
Q

Gynéco

A

Cellules métaplasiques normales sur une préparation en milieu liquide.

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6
Q

Gynéco

A

Cellules dégénérées dans le mucus et cellules parabasales dans un frottis conventionnel. Les cellules parabasales peuvent être difficiles à différencier de cellules métaplasiques; dans ce cas, mettre un commentaire à propos de la difficulté d’évaluer la zone de transformation.

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7
Q

Gynéco

A

Spécimen jugé insatisfaisant en raison de l’obscurcissement par des leucocytes.

Si 50-75% des cellules sont obscurcies, mettre un commentaire comme quoi les leucocytes obscurcissent les cellules dans la section du contrôle de qualité.

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8
Q

Gynéco

A

Cellules malpighiennes superficielles normales

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9
Q

Gynéco

A

Cellules malpighiennes intermédiaires normales

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10
Q

Gynéco

A

Cellules malpighiennes parabasales normales à côté d’une cellule intermédiaire

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11
Q

Gynéco

A

Cellules malpigihennes basales et parabasales normales

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12
Q

Gynéco

A

Cellules endocervicales bénignes vue de côté (piquets de clotures)

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13
Q

Gynéco

A

Cellules endocervicales normales vu de haut (nid d’abeille)

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14
Q

Gynéco

A

Cellules endocervicales bénignes

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15
Q

Gynéco

A

Cellules endocervicales bénignes

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16
Q

Gynéco

A

Cellules endométriales bénignes

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17
Q

Gynéco

A

Cellules endométriales bénignes

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18
Q

Gynéco

A

Cellules endométriales bénignes

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19
Q

Gynéco

A

Cellules endométriales bénignes

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20
Q

Gynéco

A

Cellules stromales endométriales bénignes

Huhu HoHostie (PE)

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21
Q

Gynéco

A

Cellules de type parabasal regroupées, distribution caractéristique en « pavée »

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22
Q

Gynéco

A

Cellule parabasale isolée au centre avec noyau rond, chromatine fine et uniformément distribuée.

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23
Q

Gynéco

A

Cellules en métaplasie squameuse avec processus cytoplasmiques fusiformes (spider cells)

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24
Q

Gynéco

A

Cellules en métaplasie squameuse dont le noyau est de la taille de celui d’une cellule parabasale. Ici, le petit nucléole est compatible avec des changements réactionnels et de réparation.

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25
Q

Gynéco

A

Glande endométriale bénigne

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26
Q

Gynéco

A

Glande endométriale bénigne

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27
Q

Gynéco

A

Parakératose. En a), perle squameuse. En b), petit amas de cellules squameuses miniatures avec petits noyaux pycnotiques.

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28
Q

Gynéco

A

Parakératose (amas orangeophile)

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29
Q

Gynéco

A

Parakératose (amas éosinophiles avec petits noyaux opaques)

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30
Q

Gynéco

A

Hyperkératose (amas de squames anucléés)

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31
Q

Gynéco

A

Hyperkératose (Cellules squameuses matures polygonales et anucléées avec fantômes nucléaires)

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32
Q

Gynéco

A

Hyperkératose avec squames anucléées

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33
Q

Gynéco

A

Parakératose en plaque

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34
Q

Gynéco

A

Cellules ciliées avec « terminal bar »

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35
Q

Gynéco

A

Cellules ciliées cylindriques. La flèche montre une cellule caliciforme.

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36
Q

Gynéco

A

Cellules ciliées (flèche) avec « terminal bar ». Pseudo-stratification proéminente et noyaux de grande taille à risque de confondre avec AIS

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37
Q

Gynéco

A

Métaplasie tubaire

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38
Q

Gynéco

A

Métaplasie tubaire

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39
Q

Gynéco

A

Atrophie sur préparation en milieu liquide. Amas plat et monocouche de cellules de type parabasal avec polarité nucléaire préservée.

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40
Q

Gynéco

A

Atrophie sur préparation en milieu liquide. Dissociation des cellules parabasales dans un background plus propre.

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41
Q

Gynéco

A

Atrophie sur préparation en milieu liquide. Les débris granulaires sont amassés autour des cellules atrophiques. Ne pas surdiagnostiquer comme « clinging tumor diathesis ».

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42
Q

Gynéco

A

Atrophie sur frottis conventionnel. Cellules géantes multinucléées (trouvaille non-spécifique, souvent vue dans les spécimens post-ménopause ou post-partum). Ne pas confondre avec syncytiotrophoblaste et cellules multinucléées de l’herpès.

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43
Q

Gynéco

A

SurePath Pap test shows “blue blobs” (white curved arrow), which are epithelial cell alterations in atrophic vaginitis. Parabasal cells (white solid arrow) with debris (white open arrow) are seen.

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44
Q

Gynéco

A

Cellules parabasales dégénérées en contexte atrophique

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45
Q

Gynéco

A

Atrophie avec “blobs” bleutés

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46
Q

Gynéco

A

Atrophie avec pseudo-diathèse

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47
Q

Gynéco

A

Métaplasie transitionnelle bénigne

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48
Q

Gynéco

A

Cellules naviculaires (glycogénation en contexte de grossesse)

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49
Q

Gynéco

A

Cellules naviculaires (glycogénation en contexte de grossesse)

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50
Q

Gynéco

A

Cellule déciduale

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51
Q

Gynéco

A

Cellules déciduales

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52
Q

Gynéco

A

Les changements déciduaux ressemblent à des anomalies des cellules épithéliales, à la fois LSIL et HSIL. Ces cellules sont lâchement cohésives, environ de la taille d’une cellule intermédiaire, avec cytoplasme fin, peu défini. Les noyaux sont pâles, finement granulaires avec chromatine distribuée uniformément. Les nucléoles sont présents. En l’absence des renseignements cliniques pertinents (grossesse ou post-partum), on risque de les interpréter comme cellules réactionnelles ou LSIL.

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53
Q

Gynéco

A

Syncytiotrophoblastes

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54
Q

Gynéco

A

Modifications d’Arias-Stella

Photo dégeux criss

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55
Q

Gynéco

A

Cellules squameuses réactionnelles avec augmentation de la taille nucléaire mais chromatine fine et uniforme et contours nucléaires réguliers.

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56
Q

Gynéco

A

Modifications réactionnelles

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57
Q

Gynéco

A

Cellules glandulaires réactionnelles

Mime LSIL (environ même taille de cellule) or nucléole pas caractéristique de LSIL

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58
Q

Gynéco

A

Hyperplasie micro-glandulaire (cellules endocervicales réactionnelles)

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59
Q

Gynéco

A

Changements de réparation. Amas cohésif de cellules endocervicales réactionnelles. Nucléoles proéminents.

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60
Q

Gynéco

A

Changements de réparation. Cohésion cytoplasmique et streaming. PMN intracytoplasmiques.

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61
Q

Gynéco

A

Feuillet monocouches de cellules réactionnelles de réparation avec bordures cytoplasmiques distinctes, polarité nucléaire montrant un streaming, nucléole proéminent. Sur le dessus, on voit un amas de cellules endocervicales réactionnelles.

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62
Q

Gynéco

A

Changements réactionnels sur préparation en milieu liquide. Le streaming est moins apparent vu les amas arrondis. On note des PMN intracytoplasmiques.

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63
Q

Gynéco

A

Préparation en milieu liquide: population lymphocytaire polymorphe, macrophages à corps tingibles. Dans ces préparations, les lymphocytes tendent plus à s’agréger.

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64
Q

Gynéco

A

Cervicite folliculaire

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65
Q

Gynéco

A

Cervicite folliculaire

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66
Q

Gynéco

A

Changements réactionnels et de réparation dans une cervicite folliculaire. Un macrophage à corps tingible est visible au centre.

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67
Q

Gynéco

A

ThinPrep Pap test shows reactive changes due to radiation in endocervical cells. There is nucleomegaly with corresponding increase in cytoplasm resulting in normal N:C ratios. Degenerative cytoplasmic vacuoles are another common feature (white curved arrow).

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68
Q

Gynéco

A

Changements réactionnels et de réparation secondaires aux radiations: karyomégalie, cytoplasme abondant, vacuolisé et polychromatique, noyau légèrement hyperchromatique sans chromatine grossière, nucléole proéminent. Encadré: multinucléation.

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69
Q

Gynéco

A

a) Changements réactionnels secondaires aux radiations sur des cellules squameuses. Cytoplasme abondant de forme irrégulière, avec streaming. Noyau agrandis pâles ou hyperchromatiques avec nucléole.
b) En milieu liquide, les cellules ne montrent pas le streaming et le cytoplasme est plus dense.

La dégénération nucléaire et la vacuolisation cytoplasmique sont fréquentes dans les deux types de préparation.

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70
Q

Gynéco

A

Cellules malpighiennes intermédiaires avec granules kératohyalines

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71
Q

Gynéco

A

Atrophie et pseudo-parakératose

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72
Q

Gynéco

A

Atrophie

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73
Q

Gynéco

A

Cervicite folliculaire

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74
Q

Gynéco

A

Modifications post-radiques

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75
Q

Gynéco

A

Petit amas de cellules glandulaires avec des vacuoles cytoplasmiques déplaçant le noyau.

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76
Q

Gynéco

A

Dans une préparation en milieu liquide, les amas cellulaires sont plus serrés mais on retrouve, comme dans le frottis, une vacuolisation cytoplasmique et des changements nucléaires réactionnels.

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77
Q

Gynéco

A

Modifications secondaires à un dispositif intra-utérin

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78
Q

Gynéco

A

Organismes un peu flous

Petit noyau pâle

Granules cytoplasmiques (difficilement visibles)

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79
Q

Gynéco

A

Trichomonas vaginalis: organismes en forme de poire avec noyau excentré et granules cytoplasmiques éosinophiles. Le noyau et la présence de granules différencie trichomonas de fragments cytoplasmiques artéfactuels.

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80
Q

Gynéco

A

Pap test shows the pear-shaped trichomonas organisms (black solid arrow), which are overlying squamous epithelial cells and between cells. The thin long filamentous leptothrix (cyan solid arrow) are usually seen in association with trichomonas. Bacterial vaginosis covering cells is also frequently seen (black open arrow).

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81
Q

Gynéco

A

Trichomonas vaginalis

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82
Q

Gynéco

A

Poly balls, ici avec quelques trichomonas en background. Les poly balls sont des indices de trichomonas.

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83
Q

Gynéco

A

Trichomonas vaginalis

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84
Q

Gynéco

A

Liquid-based Pap shows pear-shaped trichomonas organisms containing a single nucleus (white solid arrow), cytoplasmic granules (white curved arrow), and a flagellum (black open arrow) that is not easily visualized.

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85
Q

Gynéco

A

Leptothrix (Pap-stained, SurePath monolayer): Long bacilli, noted singly or in colonies, often noted with trichomonas, clinically insignificant.

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86
Q

Gynéco

A

Trichomonas et Leptothrix

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87
Q

Gynéco

A

Trichomonas vaginalis

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88
Q

Gynéco

A

Trichomonas vaginalis

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89
Q

Gynéco

A

Pseudo-hyphes et spores (qui bourgeonnent des pseudo-hyphes). Noter le shish-kebab de cellules épithéliales.

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90
Q

Gynéco

A

Pseudo-hyphes avec quelques spores sur préparation en milieu liquide.

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91
Q

Gynéco

A

Shish kebab de cellules squameuses se voyant à faible grossissement même si les pseudo-hyphes ne sont pas proéminentes.

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92
Q

Gynéco

A

Candida

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93
Q

Gynéco

A

Candida

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94
Q

Gynéco

A

Liquid-based Pap shows organisms consistent with Candida species with spearing of squamous cells (black solid arrow) (best appreciated on low magnification). Also note the cells covered by a film of bacteria (cyan solid arrow) consistent with bacterial vaginosis.

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95
Q

Gynéco

A

Liquid-based Pap shows organisms consistent with Candida species with spearing of squamous cells (black solid arrow) (best appreciated on low magnification). Also note the cells covered by a film of bacteria (cyan solid arrow) consistent with bacterial vaginosis.

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96
Q

Gynéco

A

Clue cell: cellule squameuse recouverte d’un film de bactéries

Préparation en milieu liquide avec background propre

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97
Q

Gynéco

A

Lactobacilles: flore normale.

Les lactobacilles causent la cytolyse des cellules squameuses, donc on retrouve des noyaux nus.

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98
Q

Gynéco

A

Clue cells: les bactéries adhèrent aux cellules squameuses, leur donnant l’aspect d’un tapis shag.

Absence de lactobacilles.

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99
Q

Gynéco

A

Coccobacilles en background qui remplacent les lactobacilles (frottis conventionnel)

Clue cells

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100
Q

Gynéco

A

Préparation en milieu liquide à background propre

Clue cell

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101
Q

Gynéco

A

Gardnerella vaginalis: bactéries dans le background et recouvrant les cellules squameuses (clue cells). Peu/pas de PMN.

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102
Q

Gynéco

A

Actinomyces

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103
Q

Gynéco

A

Colonies bactériennes avec aspect en boule de coton. Les organismes sont filamenteux (voir en périphériE ceux qui font protrusion).

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104
Q

Gynéco

A

Amas emmêlés d’organismes filamenteux formant un aspect de boule de coton. Noter la réponse inflammatoire aiguë importante.

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105
Q

Gynéco

A

SurePath Pap test shows a fluffy ball-like structure from the periphery of which radiate fine filamentous bacteria (black solid arrow), consistent with the Actinomyces species.

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106
Q

Gynéco

A

SurePath Pap test shows filamentous bacteria morphologically consistent with the Actinomyces species.

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107
Q

Gynéco

A

Noyaux emplis de particules virales à apparence pâle et homogène. La chromatine est marginée. Certains noyaux ont une inclusion intra-nucléaire éosinophile.

Herpes

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108
Q

Gynéco

A

Inclusions de type Cowdry A. Noyau en verre dépoli.

L’encadré montre une cellule multinucléée typique sur préparation en milieu liquide.

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109
Q

Gynéco

A

ThinPrep Pap test shows herpes viral cytopathic effect with multinucleation (white solid arrow), molding of nuclei (white curved arrow) and margination of chromatin.

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110
Q

Gynéco

A

Cellule de grande taille avec noyau de grande taille

Inclusion intranucléaire entourée d’un halo clair

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111
Q

Gynéco

A

CMV

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112
Q

Gynéco

A

Chaque cellule est dotée d’une grosse inclusion intranucléaire entourée d’un halo clair. Le cytoplasme contient aussi de multiples petites granules basophiles.

Habituellement, seules quelques rares cellules sont identifiées.

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113
Q

Gynéco

A

Cellules endométriales mimant un HSIL. Groupe de cellules endométriales mal préservées, de petite taille avec noyau hyperchromatique et haut ratio N:C.

Peut mimer un ASC-H

huhu hohosti

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114
Q

Gynéco

A

Collection of endometrial cells (white open arrow) (~ the same size as adjacent intermediate cell nucleus (white solid arrow)) with high N:C ratios is shown. The small size of the cells and clustering is a clue to their endometrial origin.

(Peut mimer un ASC-H)

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115
Q

Gynéco

A

Koïlocytes classiques avec grande cavité cytoplasmique délimitée par un renforcement cytoplasmique. Cellules fréquemment binucléées. L’augmentation de la taille du noyau peut être moins marquée que dans les LSIL non-koïlocytaires.

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116
Q

Gynéco

A

LSIL non-koïlocytaire. Les noyaux sont significativement plus grands avec hyperchromasie légère et contours irréguliers.

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117
Q

Gynéco

A

LSIL avec kératinisation.

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118
Q

Gynéco

A

LSIL

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119
Q

Gynéco

A

Cellules de grande taille, chromatine smudgy, cytoplasme bien défini, multinucléation.

(LSIL)

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120
Q

Gynéco

A

Anomalies nucléaires; l’effet cytopathique du HPV avec le halo périnucléaire n’est pas en lui seul suffisant pour parler de LSIL.

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121
Q

Gynéco

A

Koïlocytes: cavité péri-nucléaire bien définie, condensation du cytoplasme en périphérie, noyaux anormaux (grande taille, membrane irrégulière). L’hyperchromasie peut être moins visible sur les préparations en milieu liquide.

(LSIL)

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122
Q

Gynéco

A

Cellules squameuses matures avec noyau agrandi, chromatine variable et membranes nucléaires variables. Ici, les koïlocytes sont présents.

(LSIL)

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123
Q

Gynéco

A

Low-grade squamous intraepithelial lesion (LSIL) on ThinPrep shows cells (white solid arrow) without the koilocytic cytoplasmic clearing but with nuclear features, including enlargement, hyperchromasia, and contour irregularities. Koilocytes are seen in the lower part of the image (white curved arrow).

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124
Q

Gynéco

A

ThinPrep Pap test with thick clumps of koilocytes of varying sizes and optically clear halos and peripheral condensation of cytoplasm is shown.

(LSIL)

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125
Q

Gynéco

A

Pap smear shows navicular cells with yellow-tinged coloration (black solid arrow) to the cytoplasmic clearing. Nuclear changes of LSIL are absent in this mimic.

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126
Q

Gynéco

A

Cellules avec peu de cytoplasme, un noyau très hyperchromatique et des contours nucléaires irréguliers.

(HSIL)

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127
Q

Gynéco

A

Cellules avec quantité modérée de cytoplasme, anciennement classées comme CIN 2.

(HSIL)

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128
Q

Gynéco

A

HSIL

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129
Q

Gynéco

A

HSIL

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130
Q

Gynéco

A

HSIL

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131
Q

Gynéco

A

HSIL

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132
Q

Gynéco

A

Une grosse cellule LSIL avec 4 petites cellules HSIL au ratio N:C élevé

(HSIL)

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133
Q

Gynéco

A

Amas syncytial (groupe entassé hyperchromatique, traduction libre de « crowded hyperchromatic group »

(HSIL)

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134
Q

Gynéco

A

HSIL

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135
Q

Gynéco

A

HSIL. Les noyaux sont ceux d’un HSIL, mais le ratio N:C est plutôt bas pour un HSIL.

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136
Q

Gynéco

A

HSIL avec variation de la forme et de la taille des noyaux. Le cytoplasme est délicat.

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137
Q

Gynéco

A

HSIL avec cytoplasme dense « métaplasique ». Au faible grossissement, risque de les confondre avec des cellules métaplasiques.

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138
Q

Gynéco

A

HSIL

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139
Q

Gynéco

A

HSIL sur préparation en milieu liquide. Les noyaux sont irréguliers et la chromatine anormale, mais l’hyperchromatisme est moins prononcé que sur un frottis conventionnel.

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140
Q

Gynéco

A

HSIL. Les nucléoles sont rarement présents, mais se voient particulièrement en cas d’extension du CIN dans les glandes endocervicales.

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141
Q

Gynéco

A

HSIL kératinisant. Les critères nucléaires sont plus difficiles à appliquer sur les cellules kératinisées.

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142
Q

Gynéco

A

HSIL

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143
Q

Gynéco

A

HSIL

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144
Q

Gynéco

A

ThinPrep Pap with usual (not imager) Pap stain shows hypochromatic HSIL. The nuclei are hypochromic but do show high N:C ratios and contour irregularities (black curved arrow). These are unique to ThinPreps and may be related to the fixative medium. This can be misinterpreted as metaplasia.

(HSIL)

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145
Q

Gynéco

A

Conventional Pap shows keratinizing HSIL. Orangeophilic cells (black curved arrow) with high N:C ratios and dense, dark nuclei with irregular contours (black solid arrow) are shown.

(HSIL)

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146
Q

Gynéco

A

HSIL avec extension dans les glandes endocervicales. L’aplatissement des cellules en périphérie favorise un HSIL par rapport à une lésion glandulaire.

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147
Q

Gynéco

A

HSIL avec aspect d’extension dans les glandes endocervicales

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148
Q

Gynéco

A

A : HSIL

B : Endomètre

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149
Q

Gynéco

A

HSIL évoquant des changements de réparation. Cytoplasme plus abondant avec infiltrat inflammatoire.

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150
Q

Gynéco

A

Noyaux nus anormaux à rechercher des cellules HSIL classiques ailleurs dans le spécimen. Il faut les distinguer des noyaux nus de cellules intermédiaires cytolysées et des « petites cellules bleues »

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151
Q

Gynéco

A

HSIL dans le mucus

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152
Q

Gynéco

A

HSIL avec kératinisation atypique

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153
Q

Gynéco

A

Cellules kératinisées avec nucléoles et noyaux anguleux ou « en forme de carotte » qui sont suspects pour de l’invasion à Interpréter comme HSIL, ne peut éliminer une composante invasive.

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154
Q

Gynéco

A

HSIL sur atrophie. Les cellules HSIL arrangées en feuillet montrent une anisokaryose significative et une perte de polarité avec chevauchement. On identifie un amas de cellules parabasales.

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155
Q

Gynéco

A

Cellules endométriales (NILM)

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156
Q

Gynéco

A

Jeune femme au 2e trimestre de grossesse. Cellules isolées avec N:C élevé et hyperchromatisme, mais la chromatine smudgy et nucléole sont des indices de l’origine stromale déciduale.

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157
Q

Gynéco

A

Carcinome kératinisant sur préparation en milieu liquide. Diathèse tumorale, cellules kératinisées anormales, cellules fusiformes.

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158
Q

Gynéco

A

Carcinome kératinisant. Les cellules malignes sont de taille et de forme variables. On note des cellules têtards kératinisées. Les noyaux varient de vésiculés et irréguliers à pycnotiques (celluules kératinisées)

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159
Q

Gynéco

A

Carcinome épidermoïde kératinisant

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160
Q

Gynéco

A

Carcinome kératinisant. Les cellules sont pléomorphes en taille et en forme, il y a de la kératinisation et de la diathèse tumorale en background.

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161
Q

Gynéco

A

Carcinome kératinisant sur préparation en milieu liquide. La diathèse est plus subtile et s’amasse autour des groupes de cellules (clinging diathesis).

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162
Q

Gynéco

A

Bizarre malignant keratinized cell has a long club-shaped tail. Nuclear chromatin is dark with irregular clearing and nuclear contours. Note diathesis (black solid arrow), which can be subtle.

(Carcinome épidermoïde kératinisant)

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163
Q

Gynéco

A

Keratinizing squamous cell carcinoma (KSqCa) on SurePath Pap test shows a cellular specimen with diathesis (black solid arrow) and inflammation in which large keratinized malignant cells are easily seen (black open arrow).

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164
Q

Gynéco

A

ThinPrep Pap test shows spindle and bizarre cells (black solid arrow) of a KSqCa. Note the subtle clinging diathesis (black open arrow) along the periphery of an otherwise clean background.

(Carcinome épidermoïde kératinisant)

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165
Q

Gynéco

A

Pap smear shows a pearl of abnormal keratinized cells with nuclear contour irregularities (white solid arrow) and a rare cell with a nucleolus (white open arrow). Pearls from this KSqCa can be mistaken for high-grade keratinized dysplasia in the absence of diathesis. Either way, this degree of nuclear abnormality in a pearl should be called a high-grade or malignant lesion on Pap, depending on other features.

(Carcinome épidermoïde kératinisant)

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166
Q

Gynéco

A

Carcinome épidermoïde non-kératinisant

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167
Q

Gynéco

A

Carcinome épidermoïde non-kératinisant

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168
Q

Gynéco

Spécimen autrement très cellulaire

A

Diathèse tumorale

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169
Q

Gynéco

A

Carcinome non-kératinisant. Les cellules présentent les caractéristiques d’un HSIL. Les cellules sont cependant pléomorphes, ce qui rend suspect d’invasion. La diathèse et les nucléoles sont absents sur ce champ.

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170
Q

Gynéco

A

Préparation en milieu liquide. Noyaux anormaux avec nucléoles proéminents et distribution irrégulière de la chromatine. Groupe et cellules isolées. Diathèse tumorale en background.

(Carcinome épidermoïde non-kératinisant)

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171
Q

Gynéco

A

Préparation en milieu liquide. Les contours des amas sont plus ronds dans les préparations en milieu liquide, pouvant simuler une lésion glandulaire.

(Carcinome épidermoïde non-kératinisant)

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172
Q

Gynéco

A

Carcinome non-kératinisant. Amas de cellules anormales et cellules isolées avec background de cellules inflammatoires.

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173
Q

Gynéco

A

Nonkeratinizing SqCa (NKSqCa) in a bloody diathesis (white solid arrow) consisting of lysed blood and fibrin is shown. Note nucleoli (black solid arrow) and vesicular chromatin of the cells, which are round and irregular with occasional cells showing pulled, a columnar-like cytoplasm (black open arrow).

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174
Q

Gynéco

A

Métaplasie tubaire avec cils (mimique d’AGC endocervical)

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175
Q

Gynéco

A

Modifications post-radiques (NILM)

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176
Q

Gynéco

A

Modifications post-radiques (NILM)

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177
Q

Gynéco

Jeune femme

A

Modifications en contexte de dispositif intra-utérin (mimique d’AGC)

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178
Q

Gynéco

A

Modification d’Arias-Stella (mimique d’AGC)

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179
Q

Gynéco

A

Endométriose (mimique d’AGC)

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180
Q

Gynéco

A

Endométriose (mimique d’AGC)

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181
Q

Gynéco

A

AIS

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182
Q

Gynéco

A

AIS

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183
Q

Gynéco

A

AIS

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184
Q

Gynéco

A

AIS

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185
Q

Gynéco

A

AIS

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186
Q

Gynéco

A

AIS

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187
Q

Gynéco

A

AIS

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188
Q

Gynéco

A

AIS

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189
Q

Gynéco

A

AIS (variante endométrioïde)

Me semble que ça n’existe plus huhuhu

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190
Q

Gynéco

A

AIS (variante intestinale)

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191
Q

Gynéco

A

AIS

Je proteste en contexte des nucléoles

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192
Q

Gynéco

A

AIS

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193
Q

Gynéco

A

AIS

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194
Q

Gynéco

A

AIS

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195
Q

Gynéco

A

AIS

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196
Q

Gynéco

A

AIS et HSIL

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197
Q

Gynéco

A

AIS

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198
Q

Gynéco

A

A : AIS

C : Métaplasie tubaire

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199
Q

Gynéco

A

Adénocarcinome endocervical invasif

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200
Q

Gynéco

A

Adénocarcinome endocervical invasif

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201
Q

Gynéco

A

Adénocarcinome endocervical invasif

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202
Q

Gynéco

A

Adénocarcinome endocervical invasif

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203
Q

Gynéco

A

Adénocarcinome endocervical invasif

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204
Q

Gynéco

A

Adénocarcinome endocervical invasif

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205
Q

Gynéco

A

Adénocarcinome endocervical invasif (en haut) vs cellules réactionnelles (en bas)

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206
Q

Gynéco

A

Adénocarcinome endocervical invasif

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207
Q

Gynéco

A

Adénocarcinome endocervical invasif

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208
Q

Gynéco

A

Adénocarcinome endocervical invasif

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209
Q

Gynéco

A

Adénocarcinome endocervical invasif

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210
Q

Gynéco

A

Adénocarcinome endocervical invasif

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211
Q

Gynéco

A

Adénocarcinome endocervical invasif

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Adénocarcinome endocervical invasif (aspect d’AIS + diathèse tumorale)

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Adénocarcinome endocervical invasif (aspect d’AIS + diathèse tumorale)

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Adénocarcinome endocervical invasif variante villoglandulaire

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Adénocarcinome endocervical invasif variante villoglandulaire

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Adénocarcinome endocervical invasif variante mucineuse

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Adénocarcinome endocervical invasif variante mucineuse

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218
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Adénocarcinome endométrial invasif

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Adénocarcinome endométrial invasif

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Adénocarcinome endométrial invasif (diathèse acqueuse)

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Adénocarcinome endométrial invasif (aspect d’AGC + diathèse)

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Adénocarcinome endométrial invasif (au-moins AGC endométrial)

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223
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Adénocarcinome endométrial invasif

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224
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Adénocarcinome endométrial invasif

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225
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Adénocarcinome endométrial invasif

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226
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Adénocarcinome endométrial invasif

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Adénocarcinome endométrial invasif (diathèse)

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228
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Adénocarcinome séreux de haut grade

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Adénocarcinome séreux de haut grade

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Adénocarcinome endométrial (G) comparé aux dispositifs intra-utérins (D)

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Carcinome extra-utérin avec psammommes

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Carcinome extra-utérin avec psammommes

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Carcinome séreux de haut grade

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234
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Carcinome séreux de haut grade

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Carcinome séreux de haut grade

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Carcinome séreux de haut grade

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237
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Carcinome séreux de haut grade

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238
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Superficial and Intermediate Squamous Cells. The mature squamous epithelium of the ectocervix in women of reproductive age is composed throughout most of Its thickness by superficial (arrowhead) and intermediate (arrow) cells.

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Parabasal and Basal Cells (postpartum smear). Parabasal cells (large arrow) are oval and typically have dense cytoplasm. Basal cells (small arrow) are similar but have less cytoplasm. Many cells have abundant pale-yellow staining glycogen, a characteristic but nonspecific feature of squamous cells of pregnancy and the postpartum period.

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240
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Parabasal Cells (postmenopausal smear). (A) Atrophic epithelium is composed almost exclusively of parabasal cells, often arranged in broad, flowing sheets.

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Figure 01-06B. Parabasal Cells (postmenopausal smear). (B) Transitional cell metaplasia. In this uncommon condition, the atrophic epithelium resembles transitional cell epithelium by virtue of its longitudinal nuclear grooves. Nuclear membrane irregularities raise the possibility of a high-grade squamous intraepithelial lesion, but the chromatin is pale and finely textured.

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Figure 01-07A. Parabasal Cells (postmenopausal smear). (A) Degenerated parabasal cells in atrophic Pap test results have hypereosinophilic cytoplasm and a pyknotic nucleus. Note the granular background, which is commonly seen.

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Figure 01-07B. Parabasal Cells (postmenopausal smear). (B) Dark blue blobs are seen in some atrophic smears. These featureless structures should not be interpreted as a significant abnormality.

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Figure 01-08. Squamous Metaplasia. Interlocking parabasal-type cells, as seen here, represent squamous metaplasia.

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Figure 01-09A. Keratosis. (A) Hyperkeratosis. Anucleate squames are a protective response of the squamous epithelium.

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Figure 01-09A. (B) Parakeratosis. Parakeratosis appears as plaques, as seen here, or isolated cells.

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Figure 01-10A. Endocervical Cells. (A) Normal endocervical cells are often arranged in cohesive sheets. Note the even spacing of the nuclei, their pale, finely granular chromatin, and the honeycomb appearance imparted by the sharp cell membranes.

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Figure 01-10A. Endocervical Cells. (B) Sometimes they appear as strips or isolated cells. Abundant intracytoplasmic mucin results in a cup-shaped nucleus.

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Figure 01-11. Tubal Metaplasia. Ciliated endocervical cells are occasionally seen.

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Figure 01-12A. Endometrial Cells. (A) Spontaneously exfoliated endometrial cells, as in menses, are small cells arranged in balls. Cytoplasm is scant. Nuclei around the perimeter appear to be wrapping around adjacent cells (arrow), a characteristic but nonspecific feature.

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Figure 01-12A. Endometrial Cells. (B) Some exfoliated endometrial cells have a double-contoured appearance and resemble a sombrero. The inner, dense core consists of endometrial stromal cells and the outer rim of endometrial glandular cells.

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Figure 01-13A. Mimics of Exfoliated Endometrial Cells. (A) High-grade squamous intraepithelial lesion (HSIL). The cells of some HSILs are small, but still larger than endometrial cells and usually arranged in flatter aggregates rather than spheres.

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Figure 01-13B. Mimics of Exfoliated Endometrial Cells. (B) Squamous cell carcinoma (SQC). Some poorly differentiated SQCs are indistinguishable from endometrial cells. The granular debris (“tumor diathesis”) is more prominent than in most normal menstrual Pap test results.

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Figure 01-13C. Mimics of Exfoliated Endometrial Cells. (C) Adenocarcinoma in situ (AIS). Some cases of AIS have an endometrioid appearance, but mitoses (arrows) are distinctly uncommon in exfoliated endometrial cells.

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Figure 01-13C. Mimics of Exfoliated Endometrial Cells. (D) Small cell carcinoma. The cells resemble endometrial cells but are even darker. There is nuclear smearing, which is not characteristic of benign endometrial cells.

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Figure 01-14A. Endometrial Cells, Directly Sampled. (A) An intact endometrial tubule is surrounded by well-preserved endometrial stromal cells.

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Figure 01-14B. Endometrial Cells, Directly Sampled. (B) Benign stromal cells are elongated and mitotically active (arrow) and might suggest a high-grade squamous intraepithelial lesion or malignancy. The pale, finely granular chromatin and the association with intact endometrial glands are clues to a benign interpretation.

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Figure 01-14C. Endometrial Cells, Directly Sampled. (C) The glandular cells are crowded and mitotically active (arrow), but evenly spaced.

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Figure 01-15. Syncytiotrophoblast. The nuclei of these multinucleated cells are dark and coarsely granular, unlike those of histiocytes.

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Figure 01-16A. Follicular Cervicitis. (A) This smear from a 61-year-old woman contains numerous lymphocytes in various stages of maturation, including an occasional plasma cell (arrow). Most normal lymphocytes have a round nuclear contour, unlike the cells of a high-grade squamous intraepithelial lesion, to which they bear a superficial resemblance.

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Figure 01-16B. Follicular Cervicitis. (B) Lymphocytes are also a mimic of exfoliated endometrial cells. They are roughly the same size or a bit smaller, more heterogeneous in size, and less tightly clustered than most endometrial cells.

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Figure 01-17. Histiocytes. Histiocytes have abundant multivacuolated cytoplasm and an oval, occasionally folded nucleus.

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Figure 01-18. Lactobacilli. These bacteria are part of the normal flora of the vagina. Note the bare nuclei of the intermediate cells, which are subject to cytolysis by these organisms.

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Figure 01-19A. Artifacts and Contaminants. (A) “Cornflaking.” This refractile brown artifact results from bubbles of air trapped on superficial squamous cells, resulting in obscuring of the nuclei. It can be reversed by returning the slide through xylene and alcohol to water, then restaining and recoverslipping.

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Figure 01-19B. Artifacts and Contaminants. (B) Lubricant artifact. In this example, the lubricant is purple and has a granular, thread-like appearance. Depending on the formulation, it may be purple or red, and sometimes it has a denser, sheet-like appearance.

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Figure 01-19C. Artifacts and Contaminants. (C) “String of pearls.”

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Figure 01-19D. Artifacts and Contaminants. (D) “Cockleburs.” This is the name given to radiating arrays of club-shaped orange bodies composed of lipid, glycoprotein, and calcium, surrounded by histiocytes. They are most commonly associated with, but not limited to, pregnant patients. They have no clinical significance.

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Figure 01-19E. Artifacts and Contaminants. (E) Trichome. These large star-shaped structures are derived from plants. They stain a pale yellow and have from three to eight legs. Trichomes are produced by many different plants and vary in color, size, and shape.

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Figure 01-19F. Artifacts and Contaminants. (F) Carpet beetle parts. These arrow-shaped structures are contaminants from sources such as gauze pads and tampons.

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Figure 01-20. Shift in Flora Suggestive of Bacterial Vaginosis. Numerous small bacteria cover large portions of the slide. In some but not all cases, these bacteria adhere to squamous cells (“clue cells”), giving them the appearance of a shag rug, as seen here. Lactobacilli are absent.

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Figure 01-21A. Trichomonas Vaginalis. (A) This organism is pear-shaped, with a pale oval nucleus and red cytoplasmic granules, often inconspicuous. The flagellum, barely seen here, is usually inapparent (SurePath preparation, image courtesy Keith V. Nance, MD, UNC Rex Healthcare, Raleigh, NC).

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Figure 01-21B. Trichomonas Vaginalis. (B) “Trich picnic.” Numerous faintly visible organisms are aggregated, in this example on a platform of squamous cells.

À regarder les yeux fermés

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Figure 01-22. Candida. Pseudohyphae and yeast forms, some of them budding from pseudohyphae, are seen. Note the skewered squamous cells.

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Figure 01-23. Actinomyces Spp. These bacterial colonies resemble dark cotton balls. The organisms are filamentous, shown here protruding from the mass of bacteria.

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Figure 01-24A. Viral Cytopathic Changes. (A) Herpes simplex. The nuclei of infected cells are filled with viral particles, which impart a pale, homogeneous appearance. Nuclear chromatin is visible only at the periphery of some nuclei. Some have a well-defined eosinophilic intranuclear inclusion.

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Figure 01-24B. Viral Cytopathic Changes. (B) Cytomegalovirus. Each cell has a large basophilic intranuclear inclusion that is surrounded by a halo; the cytoplasm contains multiple small basophilic inclusions as well. This patient was immunocompetent and symptom free, and the inclusions were identified in only a few cells.

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Figure 01-25A. Benign Squamous Cell Changes. (A) “PM cells.” Nuclear enlargement, with little in the way of nuclear membrane irregularity or hyperchromasia, is a common finding in intermediate squamous cells from perimenopausal women. Such bland nuclear enlargement should not be mistaken for a significant atypia.

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Figure 01-25B. Benign Squamous Cell Changes. (B) A similar bland nuclear enlargement can occur in squamous metaplastic cells.

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Figure 01-26A. Nonspecific Halos. (A) Small halos around the nuclei of squamous cells are nonspecific and do not represent human papillomavirus-related changes.

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Figure 01-26B. Nonspecific Halos. (B) Some normal squamous cells have abundant glycogen that mimics koilocytosis. Note the normal nucleus.

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Figure 01-27A. Reactive Endocervical Cells. (A) A common finding, reactive endocervical cells are enlarged and have a prominent nucleolus. (B) Isolated cells can be as big as mature squamous cells and mimic a low-grade squamous intraepithelial lesion (LSIL), but a prominent nucleolus is uncharacteristic of an LSIL.

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Figure 01-27B. Reactive Endocervical Cells. (B) Isolated cells can be as big as mature squamous cells and mimic a low-grade squamous intraepithelial lesion (LSIL), but a prominent nucleolus is uncharacteristic of an LSIL.

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Figure 01-28. Reactive Endocervical Cells (microglandular hyperplasia). These cells are enlarged and have a prominent large cytoplasmic vacuole.

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Figure 01-29. Typical Repair. Reparative epithelium is cohesive and arranged in a monolayered, streaming sheet.

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Figure 01-30A. Treatment Effect. (A) Radiation effect. Radiation looks like a wild reparative reaction, with very large cells, multinucleation, cytoplasmic vacuolization, and a curious “two-tone” (pink and blue) cytoplasmic staining pattern.

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Figure 01-30B. Treatment Effect. (B) Chemotherapy effect. Similar changes are seen with some cytotoxic drugs. This patient received busulfan after a stem cell transplant for leukemia.

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Figure 01-31. Intrauterine Device (IUD) Effect. The two types of cells are seen here: a vacuolated cell and a small dark cell with scant cytoplasm. This combination is characteristic of IUD effect.

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Figure 01-32. Glandular Cells Status Post Hysterectomy. The squamous mucosa of the vagina has undergone focal mucinous metaplasia.

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Figure 01-33A. Endometriosis of the Cervix. (A) The dark and pseudostratified nuclei of endometrial-type epithelium mimic endocervical neoplasia.

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Figure 01-35A. Low-Grade Squamous Intraepithelial Lesions (LSIL). (A) LSIL. Classic koilocytes, as seen here, have a large cytoplasmic cavity with a sharply defined inner edge and are frequently binucleated. Nuclear enlargement may not be as marked as in the nonkoilocytic LSILs.

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Figure 01-35B. Low-Grade Squamous Intraepithelial Lesions (LSIL). (B) Nonkoilocytic LSIL. Nuclei are significantly enlarged and show hyperchromasia and nuclear contour irregularity. No definite koilocytes are seen. This pattern was once called mild dysplasia or CIN 1.

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Figure 01-36. Low-Grade Squamous Intraepithelial Lesion, Keratinizing Type. A squamous pearl is being formed.

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Figure 01-37A. High-Grade Squamous Intraepithelial Lesion (HSIL). (A) These cells have scant cytoplasm and a markedly hyperchromatic nucleus with highly irregular nuclear contours.

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Figure 01-37B. High-Grade Squamous Intraepithelial Lesion (HSIL). (B) Cells with a moderate amount of cytoplasm, formerly called moderate dysplasia or CIN 2, are included in the HSIL category.

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Figure 01-38. High-Grade Squamous Intraepithelial Lesion (HSIL). The cells of an HSIL are often arranged in dark, three-­dimensional groups in which individual cell borders are indistinct (syncytium-like).

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Figure 01-39. High-Grade Squamous Intraepithelial Lesion (HSIL). Some HSILs are comprised of very small, dispersed, highly atypical cells. The nucleus of these small cells is not much larger than that of normal intermediate cells. They are nevertheless identified as abnormal because of their hyperchromasia, markedly irregular nuclear outline, or both. Some HSIL cells have cytoplasmic vacuoles. These do not indicate a glandular lesion.

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Figure 01-40. High-Grade Squamous Intraepithelial Lesion (HSIL). The cells of some HSILs have an elongated configuration that makes them look columnar. In the absence of strips, rosettes, or feathering, this should not be taken for evidence of glandular differentiation (i.e., an adenocarcinoma in situ).

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Figure 01-41. High-Grade Squamous Intraepithelial Lesion (HSIL), Keratinizing Type. Although the cells show differentiation by keratinizing, they are classified as HSIL if the nuclei are sufficiently abnormal.

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Figure 01-42A. Endocervical Polyp Atypia Mimicking HSIL. (A) The slide contains scattered isolated cells with dark nuclei.

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Figure 01-43A. HSIL vs AIS (besoin d’un bloc cellulaire). (A) The distinction between a squamous and glandular lesion can be problematic, especially when individual cells in dark cell clusters are poorly visualized. .

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Figure 01-45. Squamous Cell Carcinoma. Slides from deeply invasive tumors show abundant tumor diathesis, a granular precipitate of lysed blood and cell fragments. In some cases, the malignant cells can be hard to identify.

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Gynéco

A

Figure 01-46. Squamous Cell Carcinoma (SQC), Non-Keratinizing. The malignant cells have irregularly distributed chromatin and a prominent nucleolus, characteristic features of invasive SQCs.

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303
Q

Gynéco

A

Figure 01-47. Squamous Cell Carcinoma (SQC), Nonkeratinizing. The sheet-like arrangement of poorly differentiated squamous carcinoma cells with nucleoli and mitoses mimics the appearance of reparative epithelium, but the crowding and haphazard arrangement of the cells are not typical of repair.

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304
Q

Gynéco

A

Figure 01-48A. Squamous Cell Carcinoma, Keratinizing. (A) In keratinizing carcinomas, the cells have markedly aberrant shapes, as seen here. “Fiber cells” are numerous.

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305
Q

Gynéco

A

Figure 01-48B. Squamous Cell Carcinoma, Keratinizing. (B) Tumor diathesis and a tadpole cell are seen in this tumor.

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306
Q

Gynéco

A

Figure 01-55A. Adenocarcinoma in Situ (AIS). (A) At first glance, some groups of neoplastic cells resemble the hyperchromatic crowded groups of a high-grade squamous intraepithelial lesion. Only slight feathering is seen (arrows).

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307
Q

Gynéco

A

Figure 01-55B. Adenocarcinoma in Situ (AIS). (B) The columnar features are subtle with liquid-based preparations.

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308
Q

Gynéco

A

Figure 01-55C. Adenocarcinoma in Situ (AIS). (C) A picket-fence arrangement is indicative of glandular differentiation.

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309
Q

Gynéco

A

Figure 01-56A. Adenocarcinoma in Situ (AIS). (A) Rosettes are highly characteristic of AIS and virtually never seen with high-grade squamous intraepithelial lesion, benign endocervical cells, or lower uterine segment (LUS) or endometrial epithelium.

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310
Q

Gynéco

A

Figure 01-56B. Adenocarcinoma in Situ (AIS). (B) The endocervical glandular nature of these neoplastic cells is betrayed by “feathering.”

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311
Q

Gynéco

A

Figure 01-57A. (A) Endocervical AIS. Cells are columnar in shape, dark, crowded, and arranged in a curved strip.

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312
Q

Gynéco

A

Figure 01-57C. (C) Tubal metaplasia. Atypical glandular cells bear a resemblance to those of AIS except that cilia are identified.

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313
Q

Gynéco

A

Figure 01-58A. Endocervical Adenocarcinoma. (A) The cells are round rather than elongated as in adenocarcinoma in situ. They are crowded and hyperchromatic, and a tumor diathesis is present. Tumor diathesis on liquid-based preparations appears as clumps and as a granular ring around groups of malignant cells (“clinging diathesis”).

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314
Q

Gynéco

A

Figure 01-58B. Endocervical Adenocarcinoma. (B) High magnification reveals nuclear crowding and very large nucleoli.

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315
Q

Gynéco

A

Figure 01-59A. (A) Endocervical adenocarcinoma, well-differentiated. The cells are enlarged and crowded, but the features are not conclusive for malignancy (note the absence of tumor diathesis). A diagnosis of atypical glandular cells was made.

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316
Q

Gynéco

A

Figure 01-60. Endocervical Adenocarcinoma. These malignant cells show variation in nuclear size, with very prominent nucleoli and coarsely granular chromatin.

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317
Q

Gynéco

A

Figure 01-61A. Minimal Deviation Adenocarcinoma. (A) The cells are sometimes impossible to distinguish from normal endocervical cells, as in this case.

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318
Q

Gynéco

A

Figure 01-63A. Endometrial adenocarcinoma. (A) “Bag of polys” cells have a large cytoplasmic vacuole filled with neutrophils, often obscuring the nuclear detail of the neoplastic cell.

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319
Q

Gynéco

A

Figure 01-63C. Inflamed endocervical polyp. (C) The large vacuolated cells are associated with neutrophils, just like the cells of endometrial adenocarcinoma.

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320
Q

Gynéco

A

Figure 01-65. Small Cell Neuroendocrine Carcinoma of the Cervix. The malignant cells have dark nuclei and scant cytoplasm.

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321
Q

Gynéco

A

Figure 01-66. Malignant Melanoma of the Vagina. The malignant spindled and epithelioid cells are noncohesive. There is focal finely granular melanin pigment (arrow).

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322
Q

Gynéco

A

Figure 01-67. Psammoma Bodies. These calcific spheres are dark blue or purple and have concentric laminations. They are often fractured, as seen here. These psammoma bodies originated from a borderline serous tumor of the ovary. When cells from ovarian or tubal neoplasms travel through the endometrial cavity, they can be seen on cervical or vaginal Pap samples.

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323
Q

Gynéco

Femme de >45 ans

A

Figure 01-68. Endometrial Cells in a Woman Older Than 45 Years of Age. These cells are indistinguishable from menstrual endometrial cells (see Fig. 1.12A).

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324
Q

Gynéco

A

Figure 01-69. Bare Squamous Cell Nuclei. They are about the size of endometrial cells and sometimes aggregate. Cells that lack cytoplasm should not be interpreted as endometrial cells.

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325
Q

Anus

A

Modifications réactionnelles

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326
Q

Anus

A

Caryorexie

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327
Q

Anus

A

Amibes (G)

Macrophages (D)

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328
Q

Anus

A

Oeufs d’oxyure (enterobius vermicularis)

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329
Q

Anus

A

HSIL

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330
Q

Anus

A

HSIL kératinisant

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331
Q

Anus

A

HSIL

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332
Q

Anus

A

LSIL

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333
Q

Anus

A

LSIL

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334
Q

Anus

A

LSIL et HSIL

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335
Q

Anus

A

HSIL

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336
Q

Anus

A

Carcinome épidermoïde

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337
Q

Anus

A

Carcinome épidermoïde

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338
Q

Anus

A

Carcinome épidermoïde

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339
Q

Anus

A

Adénocarcinome rectal

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340
Q

Glandes salivaires

A
  • Glandes salivaires normales
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341
Q

Glandes salivaires

A
  • Glandes salivaires normales
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342
Q

Glandes salivaires

A

Cellules acinaires normales

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343
Q

Glandes salivaires

A

CRISTAUX DE TYROSINE:

  • Forme de fleur
  • Souvent dans les adénomes pléomorphes
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344
Q

Glandes salivaires

A

CRISTAUX D’AMYLASE:

  • Polygonaux, en aiguille ou plats
  • Souvent dans des conditions inflammatoires ou des kystes bénins
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345
Q

Glandes salivaires

A

Non-diagnostic

a) Débris, hématies et rares cellules inflammatoires
b) Aspirat hypocellulaire

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346
Q

Glandes salivaires

A

Cytologie non-diagnostic

Matériel dense non-spécifique et débris

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347
Q

Glandes salivaires

A

Cytologie non-diagnostic

Aspirat hypocellulaire avec matériel protéinacé et artéfacts

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348
Q

Glandes salivaires

a et b = présence cliniquement d’une masse

A

Non-diagnostic

a et b) tissu glandulaire normale (non-diagnostic en contexte d’une masse)

c) fragments de muscle squelettique, des hématies et des débris

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349
Q

Glandes salivaires

A

Non-diagnostic

Contenu kystique non-mucineux avec histiocytes, débris et cellules inflammatoires

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350
Q

Glandes salivaires

A

Néoplasme bénin (adénome pléomorphe)

Matrice caractéristique

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351
Q

Glandes salivaires

A

Non-diagnostic

Nécrose et cellules inflammatoires

La présence de nécrose doit faire évoquer la possibilité d’un néoplasme infarcit

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352
Q

Glandes salivaires

A

SUMP basaloïde

Amas cohésif de cellules basaloïdes sans stroma

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353
Q

Glandes salivaires

A

SUMP babsaloïde

a) Cellules basaloïdes associées à un stroma hyalin
b) Cellules basaloïdes sans stroma

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354
Q

Glandes salivaires

A

SUMP oncocytaire

Cellules oncocytaires en groupe lâchement cohésifs

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355
Q

Glandes salivaires

A

SUMP oncocytaire

Cellules oncocytaires/plasmocytoïdes cohésives avec du matériel crystalin

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356
Q

Glandes salivaires

A

SUMP à cellules claires

Plages de cellules épithéliales au cytoplasme finement vacuolé

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357
Q

Glandes salivaires

A

SUMP à cellules claires

Amas lâches de cellules cohésives au cytoplasme finement vacuolé sans pléomorphisme nucléaire

Pourrait être classé en suspect de malignité à la rigueur si la suspicion de carcinome acinaire est forte

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358
Q

Glandes salivaires

A

SUMP à cellules claires

Prolifération néopalsique de cellules au cytoplasme pâle et délicat avec des vacuoles clarifiées

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359
Q

Glandes salivaires

A

SUMP à cellules claires

Cellules oncocytoïdes/claires monotones en groupe cohésif avec un cytoplasme finement granulaire

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360
Q

Glandes salivaires

A

Sialolithiases

Amas de cellules canalaires métplasiques avec un arrière-plan inflammatoire chronique/aiguë

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361
Q

Glandes salivaires

A

Sialolithiases

Aspirat contenant des fragments de cristaux et une cellule géante multinucléée

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362
Q

Glandes salivaires

Quel est ce type de patron et quels diagnostics différentiels y sont associés?

A

Inflammation mixte

  1. Sialadénite aiguë ou chronique
  2. Sialadénite granulomateuse
  3. Kyste épidermoïde inflammé
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363
Q

Glandes salivaires

Quel est ce type de patron et quels diagnostics différentiels y sont associés?

A

Lymphocytes seulement

  1. Ganglion réactionnel
  2. Sialadénite lymphoépithéliale
  3. Lymphome
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364
Q

Glandes salivaires

Quel est ce type de patron et quels diagnostics différentiels y sont associés?

A

Prolifération/Néoplasie épithéliale sans composante de stroma myoépithélial

  1. Glande salivaire normale
  2. Sialadénose
  3. Oncocytome
  4. Carcinome mucoépidermoïde
  5. Carcinome à cellules acinaires
  6. Adénocarcinome, NOS
  7. Carcinome canalaire
  8. Carcinome sécrétoire
  9. Métastase
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365
Q

Glandes salivaires

Quel est ce type de patron et quels diagnostics différentiels y sont associés?

A

Néoplasme épithélial avec stroma myoépithélial abondant

  1. Adénome pléomorphe
  2. Carcinome adénoïde kystique
  3. Carcinome ex-adénome pléomorphe
  4. Carcinome épithélial-myoépithélial
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366
Q

Glandes salivaires

Quel est ce type de patron et quels diagnostics différentiels y sont associés?

A

Néoplasme épithélial avec peu de stroma myoépithélial

  1. Adénome pléomorphe cellulaire
  2. Adénome à cellules basales
  3. Myoépithéliome
  4. Carcinome adénoïde kystique de haut grade
  5. Carcinome ex-adénome pléomorphe
  6. Carcinome myoépithélial
  7. Carcinome épithélial-myoépithélial
  8. Carcinome à cellules basales
  9. PLGA
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367
Q

Glandes salivaires

Quel est ce type de patron et quels diagnostics différentiels y sont associés?

A

Prolifération/Néoplasie épithéliale avec arrière-plan lymphoïde

  1. Sialadénite chronique
  2. Sialadénite chronique sclérosante
  3. Sialadénite lymphoépithéliale
  4. Kystes
  5. Tumeur de Warthin
  6. Carcinome mucoépidermoïde
  7. Carcinome à cellules acinaires
  8. Carcinome lymphoépithélial
  9. Métastases
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368
Q

Glandes salivaires

A

Sialolithiases

Cellules canalaires métaplasiques

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369
Q

Glandes salivaires

A

Sialolithiases

Structures de taille variable diagnostic de sialolithiases avec nombreux neutrophiles

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370
Q

Glandes salivaires

A

Sialadénite aiguë

Nombreux neutrophiles, rares plasmocytes, histiocytes et acini dégénérés

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371
Q

Glandes salivaires

A

Sialadénite aiguë

Neutrophiles abondants (+/- bactéries), histiocytes, débris nécrotiques et inflammatoires (suppuration)

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372
Q

Glandes salivaires

A

Sialadénite chronique

Amas de cellules ductales basaloïdes avec arrière-plan d’inflammation chronique

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373
Q

Glandes salivaires

A

Sialadénite chronique

G : Feuillet de cellules ductales monotones, basaloïdes

D : Atypies réactionnelles de cellules ductales

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374
Q

Glandes salivaires

A

Sialadénite chronique

Aspirat peu cellulaire avec quelques amas de cellules basaloïdes

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375
Q

Glandes salivaires

A

Sialadénite chronique sclérosante

Modérément cellulaire, feuillets de cellules ductales, background inflammatoire chronique

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376
Q

Glandes salivaires

A

Sialadénite chronique sclérosante

A : Canal tapissé par un revêtement épithélial régulier

B : Canaux entourés par une gaine fibreuse avec des cellules inflammatoires chroniques

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377
Q

Glandes salivaires

A

Sialadénite granulomateuse

Gros granulome non nécrosant, noyaux en forme de boomerang

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378
Q

Glandes salivaires

A

Sialadénite granulomateuse

G : amas d’histiocytes épithélioïdes

D : amas d’histiocytes épithélioïdes dans une sarcoïdose, absence de nécrose

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379
Q

Glandes salivaires

A

Sialadénose

Cellules acinaires de grande taille, difficile à évaluer en cyto; à corréler avec la clinique absolument

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380
Q

Glandes salivaires

A

Sialadénite lymphoépithéliale

Lésion lymphoépithéliale: cellules épithéliales réactionnelles au travers desquelles infiltrent de petits lymphocytes matures.

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381
Q

Glandes salivaires

A

Sialadénite lymphoépithéliale

Lésions lymphoépithéliales

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382
Q

Glandes salivaires

A

Sialadénite lymphoépithéliale

Lésions lymphoépithéliales

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383
Q

Glandes salivaires

A

Hyperplasie ganglionnaire réactionnelle

Groupes cohésifs de lymphocytes avec cellules folliculaires dendritiques

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384
Q

Glandes salivaires

A

Oncocytose

Plage de cellules oncocytaires reliée à un fragment d’épithélium canalaire

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385
Q

Glandes salivaires

A

Kyste à revêtement squameux

Cellules épidermoïdes dégénérées avec atypies minimales

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386
Q

Glandes salivaires

A

Kyste à revêtement squameux

Pap-stained smear of a parotid cyst shows necrotic debris (cyan solid arrow), few degenerated nuclei, and a rare anucleated keratinized cell (white solid arrow). Careful search for viable nucleated tumor cells (white curved arrow) is key to the correct diagnosis. Note the lack of plate-like, anucleate, mature squamous cells that one would expect with an epidermal inclusion cyst.

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387
Q

Glandes salivaires

A

Carcinome épidermoïde

Carcinome épidermoïde kystique: atypies nucléaires marquées, formes cellulaires bizarres, nécrose

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388
Q

Glandes salivaires

A

Kyste à revêtement squameux

A branchial cleft cyst on Pap stain consists of a polymorphous lymphocytic population (black solid arrow) and squamous cells (black open arrow). These findings are nonspecific; definitive diagnosis requires clinical and radiologic correlation.

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389
Q

Glandes salivaires

A

Kyste mucineux (AUS)

Mucus abondant et rares macrophages

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390
Q

Glandes salivaires

A

Kyste mucineux (AUS)

Mucine avec histiocytes spumeux

Aspect pouvant être retrouvé dans un kyste mucineux bénin ou un carcinome muco-épidermoïde de bas-grade

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391
Q

Glandes salivaires

A

Néoplasme bénin (adénome pléomorphe)

Cellules myoépithéliales avec matrice fibrillaire

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392
Q

Glandes salivaires

A

Néoplasme bénin (adénome pléomorphe)

Cellules myoépithéliales avec matrice fibrillaire

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393
Q

Glandes salivaires

A

Néoplasme bénin (adénome pléomorphe)

Cellules myoépithéliales avec matrice fibrillaire

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394
Q

Glandes salivaires

A

Néoplasme bénin (adénome pléomorphe)

Cellules myoépithéliales avec matrice fibrillaire

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395
Q

Glandes salivaires

A

Néoplasme bénin (adénome pléomorphe)

Matrice fibrillaire

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396
Q

Glandes salivaires

A

Néoplasme bénin (Adénome pléomorphe)

Cellules myoépithéliales avec matrice fibrillaire

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397
Q

Glandes salivaires

A

Néoplasme bénin (adénome pléomorphe)

Cellules myoépithéliales avec matrice fibrillaire

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398
Q

Glandes salivaires

A

SUMP basaloïde

Zones adénoïde kystique-like dans un adénome pléomorphe

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399
Q

Glandes salivaires

A

SUMP

Adénome pléomorphe ou la matrice est moins fibrillaire qu’à l’habitude

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400
Q

Glandes salivaires

A

SUMP

Zone adénoïde kystique-like dans un adénome pléomorphe

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401
Q

Glandes salivaires

A

SUMP

Adénome pléomorphe avec métaplasie squameuse

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402
Q

Glandes salivaires

A

SUMP

Adénome pléomorphe avec métaplasie squameuse

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403
Q

Glandes salivaires

Aspect cytologique d’adénome pléomorphe avec aspect focale représenté par l’image

A

SUMP basaloïde

Adénome pléomorphe avec atypies

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404
Q

Glandes salivaires

Cytologie d’adénome pléomorphe avec zone focale tel que représentée

A

SUMP basaloïde

Adénome pléomorphe avec atypies focales

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405
Q

Glandes salivaires

A

SUMP basaloïde

Cellules myoépithéliales plasmocytoïdes avec peu de matrice

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406
Q

Glandes salivaires

A

SUMP basaloïde

Tumeur cellulaire pauvre en matrice (adénome pléomorphe cellulaire)

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407
Q

Glandes salivaires

A

SUMP basaloïde

Adénome pléomorphe avec nombreuses celules fusiformes

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408
Q

Glandes salivaires

A

SUMP basaloïde

Adénome pléomorphe cellulaire

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409
Q

Glandes salivaires

A

SUMP basaloïde

Myoépithéliome (composé de cellules myoépithéliales)

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410
Q

Glandes salivaires

A

SUMP basaloïde

Myoépithéliome avec amas de cellules myoépithéliales

2 acini salivaires normaux à côté

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411
Q

Glandes salivaires

A

SUMP basaloïde

Myoépithéliome (cellules myoépithéliales fusiformes sans stroma)

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412
Q

Glandes salivaires

A

SUMP basaloïde

Adénome pléomorphe (cellules myoépithéliales associées à de la matrice)

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413
Q

Glandes salivaires

A

SUMP basaloïde

Adénocarcinome à cellules basales (2 populations de cellules)

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414
Q

Glandes salivaires

A

SUMP basaloïde

Adénome à cellules basales membraneux

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415
Q

Glandes salivaires

A

Néoplasme bénin (tumeur de Warthin)

Amas d’oncocytes avec arrière-plan lymphocytaire et débris protéinacés

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416
Q

Glandes salivaires

A

Oncocyte dans la nature

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417
Q

Glandes salivaires

A

Néoplasme bénin (Tumeur de Warthin)

Cellules oncocytaires avec cytoplasme granulaire abondant et bordures définies avec un arrière-plan lymphocytaire

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418
Q

Glandes salivaires

A

Néoplasme bénin (tumeur de Warthin)

Cellules oncocytaires + arrière-plan lymphocytaire

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419
Q

Glandes salivaires

A

Néoplasie bénigne (tumeur de Warthin)

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420
Q

Glandes salivaires

A

Néoplasie bénigne (tumeur de Warthin)

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421
Q

Glandes salivaires

A

SUMP oncocytaire

Oncocytome (oncocytes au cytoplasme granulaire abondant, noyaux ronds et nucléolés, absence de lymphocytes)

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422
Q

Glandes salivaires

Présence de nombreuses cellules semblables à celles-ci, peu d’autres trouvailles

A

SUMP oncocytaire

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423
Q

Glandes salivaires

A

SUMP oncocytaire

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424
Q

Glandes salivaires

A

Néoplasme bénin (lipome)

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425
Q

Glandes salivaires

A

Néoplasme bénin (lipome)

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426
Q

Glandes salivaires

A

Néoplasme bénin (schwannome)

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427
Q

Glandes salivaires

A

Néoplasme bénin (hémangiome)

Sang très abondant

Cellules endothéliales ovalaires ou fusiformes formant une structure régulière

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428
Q

Glandes salivaires

A

Néoplasme malin (carcinome muco-épidermoïde de bas-grade)

Présence de mucocytes et de cellules intermédiaires

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429
Q

Glandes salivaires

A

Néoplasme malin (carcinome muco-épidermoïde de bas-grade)

Présence d’un mucocyte avec des cellules squamoïdes

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430
Q

Glandes salivaires

A

Néoplasme malin (carcinome muco-épidermoïde de bas-grade)

Mucine abondante

Feuillets lâches de cellules épidermoïdes monotones et de cellules mucineuses

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431
Q

Glandes salivaires

A

Néoplasme malin (carcinome muco-épidermoïde de bas-grade)

Cellules épidermoïdes monotones (cytoplasme modéré, dense et bordures définies)

Cellules mucineuses (cytoplasme abondant, délicat, rose)

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432
Q

Glandes salivaires

A

Néoplasme malin (carcinome muco-épidermoïde de bas-grade)

Islands of intermediate cells (black curved arrow) are present on this low-power Pap stain. Mucin (black solid arrow) is seen in the background. There are scattered mucous cells (black open arrow).

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433
Q

Glandes salivaires

A

Néoplasme malin (carcinome muco-épidermoïde de bas-grade)

This mucoepidermoid carcinoma consists of intermediate cells (black solid arrow) and a cluster of mucus-containing cells (black open arrow) as seen in this Pap-stained smear.

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434
Q

Glandes salivaires

A

Néoplasme malin (carcinome muco-épidermoïde de bas-grade)

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435
Q

Glandes salivaires

A

Néoplasme malin (carcinome muco-épidermoïde de bas-grade)

Diff-Quik stain shows finely vacuolated (white solid arrow) and intermediate cells (white curved arrow). The fine vacuoles may contain mucin or glycogen. Mucicarmine evaluation of the cell block may be very useful for confirmation of mucus production.

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436
Q

Glandes salivaires

Foyers de mucine associés à des amas montrant cet aspect

A

Néoplasme malin (carcinome muco-épidermoïde de haut-grade)

Prédominance de cellules épidermoïdes

Atypies marquées

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437
Q

Glandes salivaires

A

Néoplasme malin (carcinome muco-épidermoïde de haut-grade)

Amas de cellules pléomorphes avec cytoplasme dense

Rares cellules glandulaires avec mucine intracytoplasmique au travers de l’amas

Noter la mucine à droite de l’image (ça ressemble à de la matrice d’adénome pléomorphe je trouve huhuhu)

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438
Q

Glandes salivaires

A

Néoplasme malin (carcinome muco-épidermoïde de haut-grade)

Cellules épidermoïdes fortement atypiques

Cellules mucosécrétantes occasionnelles au travers

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439
Q

Glandes salivaires

A

Néoplasie maligne (carcinome muco-épidermoïde de haut-grade)

High-power Pap-stained smear shows high-grade mucoepidermoid carcinoma. The nuclei demonstrate features characteristic of any high-grade malignancy. Definitive diagnosis of high-grade mucoepidermoid carcinoma is usually not possible by cytology alone.

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440
Q

Glandes salivaires

A

Néoplasie maligne (carcinome acinaire) ou SUMP à cellules claires

Amas tridimensionnels

Cellules acinaires: cytoplasme abondant, faible N:C, noyaux ronds uniformes et nucléolés

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441
Q

Glandes salivaires

A

Néoplasie maligne (carcinome acinaire) ou SUMP à cellules claires

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442
Q

Glandes salivaires

A

Néoplasie maligne (carcinome acinaire) ou SUMP à cellules claires

Feuillet de cellules avec cytoplasme abondant contenant de fines granules

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443
Q

Glandes salivaires

A

Néoplasie maligne (carcinome acinaire)

Spécimen cellulaire avec amas de cellules acinaires associés à une matrice de capillaire

Absence de cellules canalaires

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444
Q

Glandes salivaires

A

Néoplasie maligne (carcinome acinaire)

Cellules discohésives avec un cytoplasme granulaire

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445
Q

Glandes salivaires

A

Néoplasie maligne (carcinome acinaire)

Aspirat présentant une plage de cellules avec un cytoplasme délicat, abondant et de petites granules

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446
Q

Glandes salivaires

A

Néoplasme malin (Carcinome acinaire)

Amas de cellules avec un cytoplasme granulaire

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447
Q

Glandes salivaires

A

Néoplasme malin (carcinome acinaire)

Intermediate-power view demonstrates a cellular smear consisting of many large acinar (white solid arrow) structures without ducts or adipose tissue. The background contains many lymphocytes as well as bare nuclei (white curved arrow), which are identical to the nuclei of the intact cells forming acinar structures and sheets.

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448
Q

Glandes salivaires

A

Néoplasme malin (carcinome acinaire)

A 3D acinar structure with round and regular nuclei is shown. The cytoplasm is finely granular to vacuolated and in areas shows distinct cell boundaries (black solid arrow). The background shows lymphocytes as well as bare nuclei.

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449
Q

Glandes salivaires

A

Néoplasme malin (carcinome acinaire)

The finely vacuolated cells with distinct cell boundaries are clearly seen on this Diff-Quik stain. The nuclei are round with smooth nuclear contours (white solid arrow). The delicate cells can rupture and result in a background of bare nuclei, which may resemble lymphocytes.

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450
Q

Glandes salivaires

A

Néoplasme malin (carcinome acinaire)

Cellular aspirate of acinic cell carcinoma on Pap stain shows loose acini and sheets, which lacks ducts and adipose tissue. Elements in this image contrast with the small, tight, and dense acini that would be seen in a normal salivary gland aspirate.

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451
Q

Glandes salivaires

Aspirat cellulaire avec formation de tubules, de papilles et de follicules

Les cellules ressemblent à ceci

A

Néoplasme malin (carcinome sécrétoire)

À noter la présence de mucine

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452
Q

Glandes salivaires

A

Néoplasme malin (carcinome sécrétoire)

Présence de différents patrons cyto-architecturaux

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453
Q

Glandes salivaires

A

Néoplasme malin (carcinome sécrétoire)

Cellules au cytoplasme pâle et abondant avec des vacuoles

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454
Q

Glandes salivaires

A

Néoplasie maligne (carcinome sécrétoire)

Aspirat de cellules avec des noyaux de bas-grade, une chromatine granulaire et un nucléole distinct

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455
Q

Glandes salivaires

A

Néoplasme malin (carcinome adénoïde-kystique)

Cellules basaloïdes

Globules de matrice hyaline, à bordures bien définies (cookie-cutter) et acellulaires

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456
Q

Glandes salivaires

A

Néoplasme malin (carcinome adénoïde kystique)

Globules hyalins magenta au Romanowsky

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457
Q

Glandes salivaires

A

Néoplasie maligne (carcinome adénoïde kystique)

Au Pap, architecture cribriforme parce que la matrice est translucide; on voit les cellules basaloïdes

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458
Q

Glandes salivaires

A

Néoplasie maligne (carcinome adénoïde kystique)

Plages de cellules basaloïdes sans matrice avec de gros noyaux monotones avec peu de cytoplasme

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459
Q

Glandes salivaires

A

Néoplasie maligne (carcinome adénoïde kystique) ou SUMP basaloïde

Variante solide: prédominance de cellules basaloïdes avec rares sphérules stromales (flèche). Dans le doute, SUMP - cellules basales.

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460
Q

Glandes salivaires

A

Néoplasie maligne (carcinome adénoïde kystique)

Pap stain shows obvious acellular material (black solid arrow) amid the basaloid cells. In other areas (black curved arrow), it is not so apparent.

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461
Q

Glandes salivaires

A

Néoplasie maligne (carcinome adénoïde kystique)

The malignant epithelial cells are small and hyperchromatic, as seen on this Pap stain. There is very little cytoplasm. Stroma is absent in this example, making differentiation from other basaloid neoplasms challenging.

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462
Q

Glandes salivaires

A

Néoplasie maligne (Carcinome adénoïde kystique)

The tumor cells on this Pap stain are small and hyperchromatic and contain scant cytoplasm. Without the acellular material, a wide variety of basaloid tumors (benign and malignant) enter the differential.

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463
Q

Glandes salivaires

A

Néoplasme malin (carcinome adénoïde kystique)

Low magnification Diff-Quik stain shows a classic cribriform-patterned ACCa with well-defined stromal ball-like structures (black solid arrow). The small basaloid cells rim the periphery of these stromal structures (black curved arrow).

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464
Q

Glandes salivaires

A

Néoplasie maligne (carcinome adénoïde kystique)

The basement membrane material may also be arranged in long strands or tubules (black curved arrow) and stains dark purple on Diff-Quik. Islands of malignant epithelial cells (black solid arrow) are loosely attached at the periphery.

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465
Q

Glandes salivaires

A

Néoplasie maligne (carcinome adénoïde kystique)

Matrice acellulaire tubulaire

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466
Q

Glandes salivaires

A

Néoplasie maligne (carcinome adénoïde kystique)

Cellules tumorales basaloïdes monotones avec N:C élevé dont certaines entourent un matériau membrane basale-like

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467
Q

Glandes salivaires

Aspirat très cellulaire (photo représentative)

A

Néoplasie maligne (carcinome canalaire)

Gros noyaux atypiques avec nucléole proéminent

Mitoses

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468
Q

Glandes salivaires

A

Néoplasie maligne (carcinoma canalaire)

Hypercellularité avec amas cellulaires tridimensionnels. Les cellules ont une quantité modérée de cytoplasme et des noyaux hyperchromatiques. Background de sang et de nécrose.

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469
Q

Glandes salivaires

A

Néoplasie maligne (carcinome canalaire)

Cellules polygonales avec noyaux pléomorphes. Nucléoles proéminents.

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470
Q

Glandes salivaires

A

Néoplasie maligne (carcinome canalaire)

Cellules atypiques et nécrose abondante

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471
Q

Glandes salivaires

Présence de cellules atypiques et de zone telle que celle-ci, qu’est-ce qui est représentée sur l’image?

A

Nécrose en contexte de carcinome de haut-grade

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472
Q

Glandes salivaires

A

Néoplasie maligne (Carcinome canalaire)

Diff-Quik-stained FNA smear shows a cohesive cluster of pleomorphic polygonal tumor cells with relatively abundant, well-defined cytoplasm, high-grade nuclei, and mitosis (white solid arrow).

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473
Q

Glandes salivaires

Cellules fortement atypiques ayant cette architecture

A

Néoplasie maligne (carcinome canalaire)

Pap-stained FNA of salivary duct carcinoma shows a hypercellular smear, characterized by multiple 3D cellular sheets and papillary structures of tumor cells.

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474
Q

Glandes salivaires

A

Néoplasie maligne (carcinome canalaire)

Pap-stained FNA shows cellular sheets of polygonal to low columnar tumor cells with a cribriform-like pattern (white curved arrow). Necrotic debris with foamy macrophages (black solid arrow) is noted in the background.

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475
Q

Glandes salivaires

A

Noplasie maligne (carcinome de haut grade)

Diff-Quik stain used for rapid on site evaluation shows malignant cells with dark, pleomorphic, and irregular high-grade nuclei.

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476
Q

Glandes salivaires

A

Néoplasie maligne (carcinome canalaire)

Pap-stained FNA smear shows a flat sheet of tumor cells with moderately pleomorphic, round to oval nuclei and abundant well-defined cytoplasm in a necrotic dirty background (black curved arrow).

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477
Q

Glandes salivaires

A

SUMP basaloïde, suspect ou malin

Carcinome épithélial-myoépithlial

Aspirat cellulaire biphasique avec cellules myoépithéliales (prédomine) claires avec cytoplasme abondant (riche en glycogène), nucléoles, engendrant souvent noyaux nus

Cellules ductales avec peu de cytoplasme

Cellules arrangées en groupes pseudopapillaires/amas 3D autour de « core » stromal laminé acellulaire

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478
Q

Glandes salivaires

Aspirat cellulaire avec plusieurs structures comme celles-ci

A

Néoplasme malin (carcinome épithélial-myoépithélial)

Présence de sécrétions protéinacés disposés de façon concentrique à ne pas confondre avec la matrice du carcinome adénoïde kystique

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479
Q

Glandes salivaires

Aspirat cellulaire

A

Néoplasme malin (Carcinome épithélial-myoépithélial)

Aspirat avec population biphasique de cellules cuboïdes interne et de cellules myoépithéliales externes proéminentes

ES OÙ LA DEUXIÈME POPULATION DE CELLULES CRISS (PE)

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480
Q

Glandes salivaires

A

Néoplasie maligne (carcinome épithélial-myoépithélial)

Amas irréguliers de cellules épithéliales avec un arrière-plan comportant des noyaux nus de cellules myoépithéliales et du matériel stromal

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481
Q

Glandes salivaires

Aspirat cellulaire

A

Néoplasie maligne (carcinome épithélial-myoépithélial)

Population biphasique de cellules canalaires et myoépithéliales avec du matériel protéinacé

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482
Q

Glandes salivaires

Aspirat cellulaire avec du matériel matriciel fibrillaire

A

Néoplasme malin (Carcinome ex-adénome pléomorphe)

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483
Q

Glandes salivaires

Présence de matériel matriciel fibrillaire dans l’aspirat et d’amas cellulaires comme ceux-ci

A

Néoplasme malin (carcinome ex-adénome pléomorphe)

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484
Q

Glandes salivaires

A

Néoplasme malin (carcinome ex-adénome pléomorphe)

Amas de cellule carcinomateuses de haut grade avec un arrière-plan résiduel de matrice d’adénome pléomorphe

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485
Q

Glandes salivaires

A

Néoplasie maligne (carcinome myoépithélial) sinon SUMP basaloïde

MALIN: Cellules plasmacytoïdes atypiques + matrice acellulaire

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486
Q

Glandes salivaires

A

Néoplasme malin (Carcinome myoépithélial)

Aspirat cellulaire contenant des cllules atypiques avec une morphologie plasmacytoïde

Stroma délicat en arrière-plan

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487
Q

Glandes salivaires

A

Néoplasie maligne (carcinome myoépithélial)

Cellules plasmacytoïde pléomorphe avec de gros noyaux et des nucléoles proéminents

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488
Q

Glandes salivaires

A

Néoplasie maligne (carcinome lympho-épithélial)

Cellules épithéliales atypiques avec un arrière-plan lymphocytaire

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489
Q

Glandes salivaires

A

Néoplasie maligne (carcinome NE à petites cellules)

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490
Q

Glandes salivaires

A

Néoplasie maligne (carcinome NE à petites cellules)

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491
Q

Glandes salivaires

A

Figure 11-02B. Normal Salivary Gland. (B) Acinar cells have a round nucleus and abundant microvacuolated cytoplasm (Papanicolaou stain).

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492
Q

Glandes salivaires

A

Figure 11-03. Sialolithiasis with Acute Sialadenitis. Stone fragments (arrow)—blue, irregularly shaped, jagged structures of varying sizes—are diagnostic of sialolithiasis. The presence of numerous neutrophils signifies an accompanying acute sialadenitis (Romanowsky stain).

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493
Q

Glandes salivaires

A

Figure 11-04A. Chronic Sialadenitis. (A) Sparsely cellular preparations show clusters of basaloid ductal cells that resemble the cells of a basaloid neoplasm. Granular debris and lymphocytes (some crushed) are scattered in the background (Papanicolaou stain).

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494
Q

Glandes salivaires

A

Figure 11-05A. Lymphoepithelial Sialadenitis. (A) Lymphoid cells, predominantly small lymphocytes, are usually abundant (Papanicolaou stain).

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495
Q

Glandes salivaires

A

Figure 11-05B. Lymphoepithelial Sialadenitis. (B) Lymphoepithelial islands are characteristic, composed of reactive epithelial cells in sheets admixed with lymphocytes (Papanicolaou stain).

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496
Q

Glandes salivaires

A

Figure 11-06. A benign squamous-lined epithelial cyst contains nucleated and anucleate squamous cells with minimal nuclear atypia. These findings are nonspecific (Papanicolaou stain).

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497
Q

Glandes salivaires

A

Figure 11-06. Squamous Epithelial-Lined Cyst Compared with Squamous Cell Carcinoma. (B) Keratinizing squamous cell carcinoma has marked nuclear atypia, bizarre cell shapes, and necrosis (Papanicolaou stain).

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498
Q

Glandes salivaires

A

Figure 11-07. Mucus-Containing Cyst. Extracellular mucin, with or without histiocytes, is a nonspecific finding. This example proved to be a mucocele, but identical findings can be seen in a low-grade mucoepidermoid carcinoma (Romanowsky stain).

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499
Q

Glandes salivaires

A

Figure 11-08A. Pleomorphic Adenoma. (A) Pale-blue matrix, embedded spindle-shaped myoepithelial cells, and tubules of ductal cells are identified at low power (Papanicolaou stain).

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500
Q

Glandes salivaires

A

Figure 11-08B. Pleomorphic Adenoma. (B) Air-dried preparation accentuate the matrix, which stains a bright magenta and has a characteristic fibrillar texture with frayed edges (“troll hair”). Isolated plump spindle-shaped and plasmacytoid myoepithelial cells are scattered about (Romanowsky stain).

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501
Q

Glandes salivaires

A

Figure 11-09A. Pleomorphic Adenoma with Adenoid Cystic-Like Foci. (A) A lucent cylinder is present in a background of myoepithelial cells (Papanicolaou stain).

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502
Q

Glandes salivaires

A

Figure 11-10A. Pleomorphic Adenomas with Atypia. (A) There is marked nuclear size variation in an otherwise typical pleomorphic adenoma (Romanowsky stain).

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503
Q

Glandes salivaires

A

Figure 11-11A. Myoepithelial Cell-Rich Neoplasms. (A) Loosely cohesive, spindle-shaped myoepithelial cells are the sole constituents of this aspirate.

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504
Q

Glandes salivaires

A

Figure 11-12A. Basaloid Neoplasms. (A) There is a pure population of uniform basaloid cells: “basaloid” because of their scant cytoplasm. A more specific interpretation than basaloid neoplasm is not possible (Romanowsky stain).

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505
Q

Glandes salivaires

A

Figure 11-12B. Basaloid Neoplasms. (B) A lattice-like network of basaloid cells surrounds coalescing extracellular matrix globules. This pattern is nonspecific and seen in a variety of matrix-containing basaloid neoplasms (Romanowsky stain). Histologic examination of both specimens revealed a basal cell adenoma.

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506
Q

Glandes salivaires

A

Figure 11-13A. Basal Cell Adenoma, Membranous Type. (A) Clusters of basaloid cells are surrounded by a ribbon (“cuticle”) of dense aqua-colored matrix material (arrow; Papanicolaou stain).

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507
Q

Glandes salivaires

A

Figure 11-13B. Basal Cell Adenoma, Membranous Type. The ribbon of matrix is better seen in this high magnification image (Papanicolaou stain).

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508
Q

Glandes salivaires

A

Figure 11-15A. Warthin Tumor. (A) Sheets of oncocytes are present in a background of lymphocytes and granular debris (Papanicolaou stain).

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509
Q

Glandes salivaires

A

Figure 11-15B. Warthin Tumor. (B) At higher power, the abundant smooth, dense cytoplasm is apparent. The cytoplasm would appear finely granular (rather than smooth and dense) with an alcohol-fixed preparation. There is abundant granular debris in the background, and many lymphocytes show smearing artifact (Romanowsky stain).

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510
Q

Glandes salivaires

A

Figure 11-16A. Oncocytoma. (A) The oncocytes of an oncocytoma are often arranged as cords (trabeculae) of variable thickness, and the cords may show a branching pattern, as seen here. Note the absence of lymphocytes and granular debris, as compared with a Warthin tumor (Papanicolaou stain).

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511
Q

Glandes salivaires

A

Figure 11-16B. Oncocytoma. (B) Oncocytes have a round to oval nucleus and abundant finely granular cytoplasm (Papanicolaou stain).

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512
Q

Glandes salivaires

A

Figure 11-17A. Low-Grade Mucoepidermoid Carcinoma (Mec). (A) In a low-grade mec, abundant background mucin is often seen. Compared with a mucocele (see Fig. 11.7), cellularity is typically greater, and mucus cells (arrows) and intermediate cells (arrowheads) predominate (Papanicolaou stain).

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513
Q

Glandes salivaires

A

Figure 11-17B. Low-Grade Mucoepidermoid Carcinoma (Mec). (B) At high power, mucus cells and intermediate cells (arrowheads) are accompanied by lymphocytes. Note the wisp of extracellular mucin (Papanicolaou stain).

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514
Q

Glandes salivaires

A

Figure 11-17C. Low-Grade Mucoepidermoid Carcinoma (Mec). (C) In this low-grade mec, the mucus cells are more difficult to recognize (arrows) because of the more numerous intermediate cells (arrowheads). Note the abundance of lymphoid cells (Romanowsky stain).

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515
Q

Glandes salivaires

A

Figure 11-17D. Low-Grade Mucoepidermoid Carcinoma (Mec). (D) A cell with both squamoid and mucinous features (arrow) is a characteristic finding (Papanicolaou stain).

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516
Q

Glandes salivaires

A

Figure 11-18A. High-Grade Mucoepidermoid Carcinoma (Mec). In high-grade mec, squamoid cells predominate, as shown in these two different examples. Marked nuclear atypia is present. (A) Papanicolaou stain

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517
Q

Glandes salivaires

A

Figure 11-18B. High-Grade Mucoepidermoid Carcinoma (Mec). In high-grade mec, squamoid cells predominate, as shown in these two different examples. Marked nuclear atypia is present. (B) Romanowsky stain.

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518
Q

Glandes salivaires

A

Figure 11-19A. Acinic Cell Carcinoma. (A) Thick masses of cells with acinar features cluster around blood vessels in a pseudopapillary fashion. Compared to the tight grape-like arrangement of normal acini

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519
Q

Glandes salivaires

A

Figure 11-19B. Acinic Cell Carcinoma. (B) Neoplastic cells have abundant delicate, granular cytoplasm and cytologically bland nuclei (Papanicolaou stain). .

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520
Q

Glandes salivaires

A

Figure 11-19C. Acinic Cell Carcinoma. (C) The loose arrangement of cells with abundant delicate, vacuolated cytoplasm can be appreciated (Romanowsky stain).

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521
Q

Glandes salivaires

A

Figure 11-20A. Adenoid Cystic Carcinoma. (A) Numerous variably sized, magenta stromal spheres are evident (Romanowsky stain).

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522
Q

Glandes salivaires

A

Figure 11-20B. Adenoid Cystic Carcinoma. (B) With the Papanicolaou stain, the tumor cells are readily apparent, but the matrix material is pale and ghost-like (arrows, Papanicolaou stain).

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523
Q

Glandes salivaires

A

Figure 11-20C. Adenoid Cystic Carcinoma. (C) The basaloid neoplastic cells are uniform in size (Papanicolaou stain).

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524
Q

Glandes salivaires

A

Figure 11-21. Adenoid Cystic Carcinoma. Basaloid cells surround spheres and finger-like projections of matrix, which has a “cookie-cutter”–like appearance due to its sharp edges (Romanowsky stain).

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525
Q

Glandes salivaires

A

Figure 11-22. Adenoid Cystic Carcinoma, Solid Variant. Basaloid cells predominate in this aggressive variant. The identification of rare stromal spheres (arrow) is needed to make the diagnosis (Romanowsky stain).

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526
Q

Glandes salivaires

A

Figure 11-23A. Carcinoma Ex Pleomorphic Adenoma. (A) Carcinoma, typically high-grade, may be predominantly myoepithelial as shown here. Residual pleomorphic adenoma is needed for definitive diagnosis but is often inapparent and only suggested by the presence of metachromatic stroma in the background (Romanowsky stain).

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527
Q

Glandes salivaires

A

Figure 11-23B. Carcinoma Ex Pleomorphic Adenoma. (B) The distinction from other high-grade carcinomas like this myoepithelial carcinoma may be impossible but does not impact clinical management (Papanicolaou stain).

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528
Q

Glandes salivaires

A

Figure 11-24A. High-Grade Carcinoma (Salivary Duct Carcinoma). (A) Large, round nuclei with prominent nucleoli and nondescript cytoplasm are typical of a high-grade carcinoma (Papanicolaou stain).

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529
Q

Glandes salivaires

A

Figure 11-24B. High-Grade Carcinoma (Salivary Duct Carcinoma). (B) a salivary duct carcinoma can be suspected when there is abundant necrosis (Romanowsky stain). (Inset) Strong nuclear staining for androgen receptor is characteristic of salivary duct carcinoma.

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530
Q

Glandes salivaires

A

Figure 11-25A. Secretory Carcinoma. (A) Loosely cohesive cells have abundant vacuolated cytoplasm, a round nucleus, and a distinct nucleolus (Papanicolaou stain).

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531
Q

Glandes salivaires

A

Figure 11-26A. Polymorphous Adenocarcinoma. (A) The neoplastic cells have a basaloid appearance and form large, sheet-like masses. Sharply circumscribed spheres of matrix are indistinguishable from those seen in adenoid cystic carcinoma (arrow) (Romanowsky stain).

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532
Q

Glandes salivaires

A

Figure 11-26B. Polymorphous Adenocarcinoma. (B) The neoplastic cells have round to oval nuclei and lack atypia (Papanicolaou stain).

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533
Q

Glandes salivaires

A

Figure 11-27A. Epithelial-Myoepithelial Carcinoma. (A) The neoplastic cells are crowded around vessels and dispersed in the background, many as bare nuclei. The majority are myoepithelial cells. Because the epithelial cells are less apparent, a biphasic population is not obvious. Note the finely dispersed glycogen in the background (Romanowsky stain).

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534
Q

Glandes salivaires

A

Figure 11-27B. Epithelial-Myoepithelial Carcinoma. (B) The myoepithelial cells have clear, fragile cytoplasm (Papanicolaou stain).

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535
Q

Pancréas

A

Acini pancréatiques normaux

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536
Q

Pancréas

A

Acini pancréatiques normaux

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537
Q

Pancréas

A

Pap: acini (flèche ouverte) et épithélium ductal (flèche fermée)

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538
Q

Pancréas

A

Pap: acini (flèche ouverte) et canal central (flèche fermée) d’un lobule entier

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539
Q

Pancréas

A

Épithélium canalaire bénin en nid d’abeille

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540
Q

Pancréas

A

Épithélium canalaire bénigne

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541
Q

Pancréas

A

Cellules ductales N au Pap

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542
Q

Pancréas

A

cellules ductales N au Pap

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543
Q

Pancréas

A

Pap: acini (flèche ouverte) et cellules ductales (flèche fermée)

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544
Q

Pancréas

A

Diff Quick: acini pancréatiques bénins

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545
Q

Pancréas

A

Diff Quick: duodénum (remarquez cellules à Gobelet)

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546
Q

Pancréas

A

Pap: épithélium gastrique (fovéoles)

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547
Q

Pancréas

A

Diff Quick: épithélium gastrique. Flèche droite - cellules pariétales. Flèche courbée - cellules principales

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548
Q

Pancréas

A

Épithélium duodénale normal

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549
Q

Pancréas

A

Épithélium gastrique normal

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550
Q

Pancréas

A

Non-diagnostic, caillot sanguin

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551
Q

Pancréas

Présence d’une masse suspecte au scan

A

Non-diagnostic (pancréas normal en présence d’une masse)

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552
Q

Pancréas

Présence uniquement de quelques amas cellulaires comme ceux-ci

A

Non-diagnostic, matériel de contamination uniquement

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553
Q

Pancréas

A

Non-diagnostic, matériel de contamination uniquement (noyaux nus des cellules gastriques qui ont tendance à perdre leur cytoplasme)

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554
Q

Pancréas

A

Pancréatite aiguë

Pap: PMN et cellule géante multinucléée

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555
Q

Pancréas

A

Pancréatite aiguë

Pap : épithélium canalaire réactionnel (augmentation légère en taille des noyaux + PMN)

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556
Q

Pancréas

A

Pancréatite aiguë

Pap : PMN + nécrose graisseuse

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557
Q

Pancréas

A

Pancréatite aiguë

Canaux/acinis bénins associés à de la nécrose adipeuse et des éléments inflammatoires

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558
Q

Pancréas

A

Pancréatite chronique

Atypies de l’épithélium canalaire

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559
Q

Pancréas

A

Pancréatite chronique

Atypies canalaires réactionnelles

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560
Q

Pancréas

A

Pancréatite chronique

Calcifications, inflammation, débris

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561
Q

Pancréas

A

Pancréatite chronique

Pap: fibrose, mais toujours suspecter desmoplasie (donc chercher atypies dans cellules restantes)

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562
Q

Pancréas

A

Pancréatite chronique

Bloce cellulaire, fibrose avec inflammation mononucléée

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563
Q

Pancréas

A

Fragments fibrotique avec cellules infllammatoires entrappées

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564
Q

Pancréas

A

Pancréatite auto-immune

Fragment stromal cellulaire contenant des cellules inflammatoires

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565
Q

Pancréas

A

Pseudokyste

Débris nécrotique, cristaux, hémosidérophages

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566
Q

Pancréas

A

Pseudokyste

Débris granulaires, histiocytes et pigments

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567
Q

Pancréas

A

Kyste lympho-épithélial du pancréas

Pap : cellules squameuses anucléées + débris + lymphocytes

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568
Q

Pancréas

A

Kyste lympho-épithélial du pancréas

Cellules squameuses +/- nucléées et rares lymphocytes

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569
Q

Pancréas

A

Kyste lympho-épithélial du pancréas

Kystes remplis de cellules malpighiennes matures

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570
Q

Pancréas

A

Rate accessoire

Aspirats cellulaires composées d’une population lymphoïde

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571
Q

Pancréas

A

Rates péri/intra-pancréatique

Pap: population polymorphe

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572
Q

Pancréas

A

Rate accessoire

Corps lymphoglandulaires

Histiocytes

Agrégat de plaquettes

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573
Q

Pancréas

A

Rate accessoire

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574
Q

Pancréas

A

Rate accessoire

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575
Q

Pancréas

A

Rate accessoire

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576
Q

Pancréas

A

Adénome microkystique séreux

Plusieurs microkystes avec épithélium cuboïde clair sans atypies

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577
Q

Pancréas

A

Adénome microkystique séreux

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578
Q

Pancréas

A

Adénome microkystique séreux

Cellules polygonales non-mucineuses avec noyau rond et chromatine régulière

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579
Q

Pancréas

A

Adénome microkystique séreux

Cellules polygonales non-mucineuses avec noyau rond et chromatine régulière

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580
Q

Pancréas

A

Adénome microkystique séreux

Cellules polygonales non-mucineuse avec noyau rond et chromatine régulière

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581
Q

Pancréas

A

Adénome microkystique séreux

Cellules polygonales non-mucineuse avec noyau rond et chromatine régulière

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582
Q

Pancréas

A

Non-diagnostic

Septas fibreux accellulaire sur fond hémorragique en contexte d’dénome microkystique séreux

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583
Q

Pancréas

A

Hémosidérophages

Indice en faveur d’un Adénome microkystique séreux

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584
Q

Pancréas

A

Fluide protéinacé épais

Indice d’Adénome microkystique séreux

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585
Q

Pancréas

A

Lymphangiome

  • Nombreux petits lymphocytes matures
  • Absence de cellules épithéliales
  • Arrière-plan non-mucineux, relativement propre
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586
Q

Pancréas

A

Néoplasme kystique mucineux

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587
Q

Pancréas

A

Mucine épaisse acellulaire

Contexte de néoplasme kystique mucineux

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588
Q

Pancréas

A

Muciphages

Contexte de néoplasme kystique mucineux

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589
Q

Pancréas

A

Dysplasie de bas grade mucineuse dans une néoplasie kystique mucineuse

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590
Q

Pancréas

A

Dysplasie mucineuse de bas-grade dans une néoplasie mucineuse kystique

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591
Q

Pancréas

A

Dysplasie modérée dans une néoplasie kystique mucineuse

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592
Q

Pancréas

A

Dysplasie modérée dans une néoplasie kystique mucineuse

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593
Q

Pancréas

A

Dysplasie modérée dans une néoplasie kystique mucineuse

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594
Q

Pancréas

Présence de mucine

A

Dysplasie de haut grade dans une néoplasie kystique mucineuse

N:C augmenté, chromatine anormale et nécrose (suggestif d’invasion, mais insuffisant pour l’affirmer)

595
Q

Pancréas

A

Dysplasie de haut grade dans une néoplasie kystique mucineuse

Atypies sévères

596
Q

Pancréas

A

Dysplasie de haut grade

Néoplasie mucineuse kystique

Atypies sévères + mucine épaisse colloïde-like et débris nécrotique

597
Q

Pancréas

A

Adénocarcinome avec vacuole de mucine

598
Q

Pancréas

A

Néoplasme mucineux papillaire intracanalaire

PAP : fond de mucine

599
Q

Pancréas

Fond mucineux

A

Néoplasie mucineuse papillaire intra-canalaire

600
Q

Pancréas

A

Mucine

601
Q

Pancréas

A

Néoplasie mucineuse papillaire intra-canalaire

Épithélium mucineux peu atypique sur fond de mucine

602
Q

Pancréas

A

Néoplasme pseudopapillaire solide

Pap: Chromatine finement granulaire des cellules autour d’un axe myxoïde

603
Q

Pancréas

Absence de mucine

A

Néoplasme pseudopapillaire solide

Cellules uniformes, noyau oval-en fève avec incisure et peu de cytoplasme

604
Q

Pancréas

A

Néoplasme pseudopapillaire solide

Meshwork pseudopapillaire vasculaire et myxoïde

605
Q

Pancréas

Absence de mucine

A

Néoplasme pseudopapillaire solide

Pseudopapille

606
Q

Pancréas

A

Néoplasme pseudopapillaire solide

Capillaires nus et cellules isolées

607
Q

Pancréas

IHC pour la beta-caténine

A

Néoplasme pseudopapillaire solide

608
Q

Pancréas

A

Néoplasme pseudopapillaire solide

Papille avec capillaire central

609
Q

Pancréas

A

Néoplasme pseudopapillaire solide

610
Q

Pancréas

A

Néoplasme pseudopapillaire solide

Capillaire central et globule hyalins

611
Q

Pancréas

A

Néoplasme pseudopapillaire solide

612
Q

Pancréas

A

TNE

613
Q

Pancréas

A

TNE

Cellules légèrement discohésives, plasmacytoïdes. Chromatine poivre et sel

614
Q

Pancréas

Ki-67

A

Carcinome NE

615
Q

Pancréas

A

NET

Cellules isolées avec chromatine poivre et sel dans un background de débris cytoplasmique

616
Q

Pancréas

A

NET

Amas à cohésion lâche

617
Q

Pancréas

A

NET

Amas lâche + une cellule plasmacytoïde

618
Q

Pancréas

A

NET

Frottis cellulaire discohésif

619
Q

Pancréas

A

NET

Cellules plasmacytoïdes

620
Q

Pancréas

A

NET

Binucléation et cellules plasmacytoïdes

621
Q

Pancréas

A

NET

Cytoplasme granulaire et noyau excentré

622
Q

Pancréas

A

NET bien différencié

623
Q

Pancréas

A

ADK canalaire pancréatique

Drunken honeycomb (disposition irrégulière des noyaux dans l’amas) et anisonucléose plus de 4 : 1

624
Q

Pancréas

A

ADK canalaire pancréatique

Bloc cellulaire : glandes cribriformes et atypies nucléaires

625
Q

Pancréas

A

ADK canalaire pancréatique

Glandes invasives dans un stroma desmoplasique

626
Q

Pancréas

A

ADK canalaire pancréatique

Pap: drunken honeycomb et irrégularité contour nucléaire

627
Q

Pancréas

A

ADK canalaire pancréatique

Pap: Gros amas trop cellulaire- indicatif de malignité (aller confirmer à fort grossissement)

628
Q

Pancréas

A

ADK canalaire pancréatique

Diff Quick: drunken honeycomb

629
Q

Pancréas

A

ADK canalaire pancréatique

Plage de cellules tumorales sur fond nécrotique

630
Q

Pancréas

A

ADK canalaire pancréatique

Anisonucléose importante (>4:1) au-sein d’un même groupe de cellules

631
Q

Pancréas

A

ADK canalaire pancréatique bien différencié

Pap: Amas cohésif dunken honeycomb, taille intermédiaire de l’amas, ratio N:C bas, anisonucléose légère, cytoplasme mucineux, éclaircissement chromatinien

632
Q

Pancréas

A

ADK canalaire pancréatique bien différencié

633
Q

Pancréas

A

ADK canalaire pancréatique moyennement différencié

Plus crowdé et plus d’anisonucléole, perte de cytoplasme mucineux, nucléoles

634
Q

Pancréas

A

ADK canalaire pancréatique mal différencié

Pap: anisonucléose marquée, ratio N:C élevé, cellules isolées, mitose, nécrose

635
Q

Pancréas

A

ADK canalaire pancréatique mal différencié

Distribution irrégulière de la chromatine

636
Q

Pancréas

A

ADK canalaire pancréatique mal différencié

637
Q

Pancréas

A

Carcinome adénosquameux

Cellules glandulaires néoplasiques et malpighiennes néoplasiques

638
Q

Pancréas

A

Carcinome canalaire pancréatique suspect de différenciation squameuse

639
Q

Pancréas

A

Carcinome à différenciation squameuse

Les carcinome épidermoïdes primaires ou métastatiques du pancréas sont très rares, alors la présence d’une composante malpighienne majoritaire doit faire suspecter un carcinome adénosquameux

640
Q

Pancréas

Masse solide en radiologie

A

Carcinome canalaire pancréatique variante colloïde

Amas de cellules atypiques mucineuses dans une piscine de mucus aspiré d’une masse solide

641
Q

Pancréas

A

Carcinome canalaire pancréatique variante colloïde

Amas de cellules atypiques mucineuses dans une piscine de mucus aspiré d’une masse solide

642
Q

Pancréas

A

Carcinome canalaire variante à cellules en bagues

Aspirat très cellulaire composé d’une prédominance de cellules en bagues avec une quantité variable de mucine extracellulaire

643
Q

Pancréas

A

Carcinome canalaire variante à cellules en bagues

Aspirat très cellulaire composé d’une prédominance de cellules en bagues

Quantité variable de mucine extracellulaire

644
Q

Pancréas

A

Carcinome canalaire indifférencié

Grosses cellules épithélioïdes

645
Q

Pancréas

A

Carcinome canalaire indifférencié

Grosses cellules épithélioïdes

646
Q

Pancréas

A

Carcinome canalaire anaplasique à grandes cellules

H&E et Diff-Quick: les cellules géantes multinucléées sont TUMORALES

647
Q

Pancréas

A

Carcinome canalaire anaplasique à grandes cellules

H&E et Diff-Quick: les cellules géantes multinucléées sont TUMORALES

648
Q

Pancréas

A

Carcinome canalaire anaplasique à grandes cellules

H&E et Diff-Quick: les cellules géantes multinucléées sont TUMORALES

649
Q

Pancréas

A

Carcinome indifférencié avec cellules géantes ostéoclastes-like

Pap: Cellules géantes multinucléées bénignes + cellules mononucléées malignes (épithélioïde à fusiformes)

650
Q

Pancréas

A

Carcinome indifférencié avec cellules géantes ostéoclastes-like

Pap: Cellules géantes multinucléées bénignes + cellules mononucléées malignes (épithélioïde à fusiformes)

651
Q

Pancréas

A

Carcinome à cellules acinaires

Pap: Cellules monomorphes polygonales avec cytoplasme granulaire contrairement à ADK ductal

652
Q

Pancréas

A

Carcinome à cellules acinaires

Architecture acinaire avec formation d’amas cellulaires irréguliers

653
Q

Pancréas

A

Carcinome à cellules acinaires

Pap: Noyau excentré, gros nucléole, cytoplasme granulaire

654
Q

Pancréas

A

Carcinomes à cellules acinaires

Pap: Cellularité abondante avec clusters lâches et cellules isolées

655
Q

Pancréas

A

Carcinome à cellules acinaires

Diff-Quick: matériel granulaire en background de noyaux nus

656
Q

Pancréas

A

Carcinome à cellules acinaires

Bloc cellulaire: Noyau excentré, nucléole et cytoplasme granulaire

657
Q

Pancréas

A

Carcinomes à cellules acinaires

Histo: Cellules tumorales forment des acini. Cytoplasme très granulaire

658
Q

Pancréas

A

Carcinome neuro-endocrinien mal différencié à petites cellules

Photo dégueux (PE)

659
Q

Pancréas

A

Pancréatoblastome

Corpuscule squameux diagnostic

660
Q

Pancréas

A

Lymphome

Diff-Quick: Corps lymphoglandulaires et population pléomorphe de cellules lymphoïdes

661
Q

Pancréas

A

Mélanome métastatique

662
Q

Pancréas

A

Cellules acinaires pancréatiques normales

663
Q

Pancréas

A

Cellules pancréatiques acinaires normales

664
Q

Pancréas

A

Cellules canalaires pancréatiques normales

665
Q

Pancréas

A

Cellules duodénales normales

666
Q

Pancréas

A

Cellules épithéliales gastriques de contamination

667
Q

Pancréas

A

Figure 14-06. Acute Pancreatitis. Benign-appearing ductal and acinar cells are associated with fat necrosis and inflammation (Papanicolaou stain).

668
Q

Pancréas

A

Figure 14-07A. Autoimmune Pancreatitis. (A) Cellular stromal fragments containing inflammatory cells are a clue to the diagnosis (Papanicolaou stain).

669
Q

Pancréas

A

Figure 14-08. Reactive (Benign) Ductal Cell Atypia. Nuclear enlargement, crowding, and prominent nucleoli are evident, but there is little variation in nuclear size (Papanicolaou stain).

670
Q

Pancréas

A

Figure 14-09A. Ductal Adenocarcinoma. (A) The uneven distribution of nuclei in the sheet (“drunken honeycomb”) and the variation in nuclear diameter (anisonucleosis) exceeding a ratio of 4:1 are characteristic features (Papanicolaou stain).

671
Q

Pancréas

A

Figure 14-09B. Ductal Adenocarcinoma. (B) “Foamy-gland” adenocarcinoma is deceptively bland due to the abundance of mucinous cytoplasm and the resulting low nuclear-to-cytoplasmic ratio (Papanicolaou stain).

672
Q

Pancréas

A

Figure 14-10. Ductal Adenocarcinoma. High-grade carcinoma shows more overt features of malignancy, with marked nuclear pleomorphism, hyperchromasia, and irregular nuclear membranes (Papanicolaou stain).

673
Q

Pancréas

A

Figure 14-12A. Ductal Carcinoma Variants. (A) Adenosquamous carcinoma is composed of a combination of malignant glandular and squamous cells. The malignant squamous component, which sometimes predominates, is characterized by dense, sometimes orangeophilic cytoplasm; the glandular component manifest as cells with vacuolated, mucinous cytoplasm (Papanicolaou stain).

674
Q

Pancréas

A

Figure 14-12A. Ductal Carcinoma Variants. (B) Undifferentiated carcinomas consist of large epithelioid or spindle-shaped cells (Romanowsky stain).

675
Q

Pancréas

A

Figure 14-13A. Undifferentiated Carcinoma with Osteoclast-Type Giant Cells. The tumor cells are mononuclear, spindle-shaped or epithelioid cells associated with prominent benign osteoclast-type giant cells (A, Papanicolaou stain; B, hematoxylin and eosin stain).

676
Q

Pancréas

A

Figure 14-14A. Pancreatic Neuroendocrine Tumor. (A) Tumor cells are dispersed as isolated cells and bare nuclei (Papanicolaou stain).

677
Q

Pancréas

A

Figure 14-14B. Pancreatic Neuroendocrine Tumor. (B) Some cells are arranged in a pseudorosette (Papanicolaou stain).

678
Q

Pancréas

A

Figure 14-14C. Pancreatic Neuroendocrine Tumor. (C) Finely stippled (“salt and pepper”) chromatin, occasional binucleation, and a plasmacytoid appearance (arrow) are characteristic (Papanicolaou stain).

679
Q

Pancréas

A

Figure 14-15A. (A) “Lipid rich” Pancreatic Neuroendocrine Tumor and its Mimics. Abundant vacuolated cytoplasm is a hallmark of the “lipid-rich” pancreatic neuroendocrine tumor; care must be taken to distinguish it from metastatic renal cell carcinoma and other mimics (Romanowsky stain).

680
Q

Pancréas

A

Figure 14-15B. (B) Metastatic Renal Cell Carcinoma. Polygonal cells with round central nuclei, prominent nucleoli, and punched out cytoplasmic vacuoles are characteristic (Romanowsky stain).

681
Q

Pancréas

A

Figure 14-15C. (C) Ectopic Adrenal Cortical Tissue. Adrenal cortical cells have abundant microvacuolated cytoplasm. The cells are fragile: note the bare nuclei and spilled vacuoles.

682
Q

Pancréas

A

Figure 14-16A. High-Grade Pancreatic Neuroendocrine Tumor. (A) Mono­morphic plasmacytoid cells are present, some showing degenerative changes.

683
Q

Pancréas

A

Figure 14-17A. Acinar Cell Carcinoma. (A) Acinar cell carcinomas recapitulate acinar architecture, but the sharp “grapelike” clustering of normal acini is blunted, resulting in solid, irregularly shaped cell clusters (Romanowsky stain).

684
Q

Pancréas

A

Figure 14-17B. Acinar Cell Carcinoma. (B) Acinar cell carcinoma cells are fragile; spilled zymogen granules from disrupted cytoplasm are characteristic and help distinguish this tumor from a neuroendocrine tumor (Romanowsky stain).

685
Q

Pancréas

A

Figure 14-18A. Solid-Pseudopapillary Neoplasm. (A) Tumor cells surround a thick stalk (Romanowsky stain).

686
Q

Pancréas

A

Figure 14-18C. Solid-Pseudopapillary Neoplasm. (C) Tumor cells have finely granular chromatin and an indistinct nucleolus (Papanicolaou stain).

687
Q

Pancréas

A

Figure 14-19. Pancreatoblastoma. The diagnostic feature is the squamoid corpuscle (   arrow) (Papanicolaou stain).

688
Q

Pancréas

A

Figure 14-20. Pseudocyst. Granular debris, histiocytes, and yellow hematoidin-like pigment are characteristic features of pseudocyst fluid (Papanicolaou stain).

689
Q

Pancréas

A

Figure 14-21A. Serous Cystadenoma. (A) The neoplastic cells are benign nonmucinous cells with round to oval nuclei (Papanicolaou stain).

690
Q

Pancréas

A

Figure 14-22A. Lymphoepithelial Cyst. (A) Mature squamous cells are abundant; lymphocytes can be scant (Papanicolaou stain).

691
Q

Pancréas

A

Figure 14-22B. Lymphoepithelial Cyst. (B) Cholesterol crystals can be prominent (Romanowsky stain).

692
Q

Pancréas

A

Figure 14-23A. Intraductal Papillary Mucinous Neoplasm. (A) Thick, colloid-like mucin is indicative of a neoplastic mucinous cyst and not gastrointestinal contamination (Papanicolaou stain).

693
Q

Pancréas

A

Figure 14-23B. Intraductal Papillary Mucinous Neoplasm. (B) Flat sheets of columnar mucinous cells with distinct cytoplasmic borders are characteristic, but virtually impossible to distinguish from normal gastric mucosa (compare with Fig. 14.5) (Papanicolaou stain).

694
Q

Pancréas

A

Figure 14-23C. Intraductal Papillary Mucinous Neoplasm. (C) Pseudostratification and moderate nuclear atypia (“intermediate-grade dysplasia”) is classified as low-grade dysplasia (Papanicolaou stain).

695
Q

Pancréas

A

Figure 14-23D. Intraductal Papillary Mucinous Neoplasm. (D) Small size (smaller than a 12-μm duodenal enterocyte), abnormal chromatin, and scant residual mucinous cytoplasm characterize the cells of high-grade dysplasia (Papanicolaou stain).

696
Q

Pancréas

A

Figure 14-24A. Ectopic Spleen. (A) Preparations reveal dense, cohesive tissue fragments and numerous dispersed small lymphocytes (Romanowsky stain).

697
Q

Pancréas

A

Figure 14-24B. Ectopic Spleen. (A) Preparations reveal dense, cohesive tissue fragments and numerous dispersed small lymphocytes (Romanowsky stain). (B) Most of the cells are small round lymphocytes. Note the abundant lymphoglandular bodies, indicative of a lymphoid lesion (Romanowsky stain).

698
Q

Urine

A

Pap vessie iléale: cellules intestinales cylindrique (haut à droite), background sale avec macrophages et débris

699
Q

Urine

A

Milieu liquide pap: Cellules intestinalesa discohésives

700
Q

Urine

A

Cellules entériques dégénérées (ressemble à histiocyte!)

701
Q

Urine

A

Cellule parapluie (au-dessus)

Cellules squameuses

702
Q

Urine

A

Métaplasie squameuse

703
Q

Urine

A

Cellules parapluies

704
Q

Urine

A

Cellules parapluies

705
Q

Urine

A

Cellules intermédiaires

706
Q

Urine

A

Cellules intermédiaires

707
Q

Urine

A

Cellules intermédiaires

708
Q

Urine

A

Cellules intermédiaires

709
Q

Urine

A

Cellules basales

710
Q

Urine

A

Cellules basales et superficielles

711
Q

Urine

A

Cellules parapluie, intermédiaires et basales

712
Q

Urine

A

Cellules basales et parapluies

713
Q

Urine

A

Vessie iléale

●Cellules isolées ou plages

●Inclusions éosinophiles intracytoplasmique (un peu à la manière de corps de Melamed Wolinska)

●Ressemblent à histiocytes

●Généralement arrière plan sale et inflammatoire

714
Q

Urine

A

Cellules urothéliales dégénérées

715
Q

Urine

A

Cellules urothéliales dégénérées

716
Q

Urine

A

Cellules tubulaires rénales

717
Q

Urine

A

Cellules tubulaires rénales

718
Q

Urine

A

Cellules tubulaires rénales

719
Q

Urine

A

Modifications réactionnelles

720
Q

Urine

A

Modifications réactionnelles

721
Q

Urine

A

Modifications réactionnelles

722
Q

Urine

A

Modifications réactionnelles

723
Q

Urine

A

BUTF (benign urothelial tissue fragment) dans miction libre

724
Q

Urine

A

BUTF (benign urothelial tissue fragment) d’un pelvis rénal instrumenté (donne un aspect qui ressemble à papille ! Ici avait été répondu suspect bas grade mais histo - N)

725
Q

Urine

A

Cluster/sheet de cellules monocouches et monotones sans atypies, avec “fenêtres”

726
Q

Urine

A

Négatif

Modifications secondaires à des lithiases

727
Q

Urine

A

Concrétions de calcium

728
Q

Urine

A

Concrétions de calcium

729
Q

Urine

A

Négatif

Modifications secondaires aux lithiases

730
Q

Urine

A

Négatif

Modifications secondaires aux lithiases

731
Q

Urine

A

Négatif

Modifications secondaires aux lithiases

732
Q

Urine

A

Modifications secondaires aux lithiases

Sans antécédents de lithiases le diagnostic approprié est atypique

733
Q

Urine

A

Malakoplakie

Corps de Michaelis Gutman

734
Q

Urine

A

Candida

735
Q

Urine

A

Polyomavirus

736
Q

Urine

A

Polyomavirus

737
Q

Urine

A

Polyomavirus

738
Q

Urine

A

Polyomavirus

739
Q

Urine

A

Polyomavirus

740
Q

Urine

A

Polyomavirus

741
Q

Urine

A

Polyomavirus

742
Q

Urine

A

Polyomavirus

743
Q

Urine

A

Trichomonas vaginalis

Sont où osti (PE)

744
Q

Urine

A

Changements post-radiques

745
Q

Urine

A

Granulome

746
Q

Urine

A

Cellule de la vésicule séminale

747
Q

Urine

A

Cellule de la vésicule séminale et spermatozoïdes

748
Q

Urine

A

Endométriose (cellules glandulaires bénignes)

749
Q

Urine

A

Négatif

Cystite glandulaire

750
Q

Urine

A

Négatif

Cystite glandulaire

751
Q

Urine

A

Négatif

Cystite glandulaire

752
Q

Urine

A

Négatif

Cystite glandulaire

753
Q

Urine

A

Nodule à cellules fusiformes

●Présence de cellules bizarres au noyau irrégulier d’origine mésenchymateuse et pouvant prendre un aspect épithélioïde

754
Q

Urine

A

Nodule à cellules fusiformes

●Présence de cellules bizarres au noyau irrégulier d’origine mésenchymateuse et pouvant prendre un aspect épithélioïde

755
Q

Urine

A

Négatif

Cystite folliculaire

756
Q

Urine

A

Carcinome urothélial de haut-grade

757
Q

Urine

A

Carcinome urothélial de haut-grade

758
Q

Urine

A

Carcinome urothélial de haut-grade

759
Q

Urine

A

Carcinome urothélial de haut grade

760
Q

Urine

A

Carcinome urothélial de haut grade

761
Q

Urine

A

Carcinome urothélial de haut grade

762
Q

Urine

A

Carcinome urothélial de haut grade

763
Q

Urine

A

Carcinome urothélial de haut grade

764
Q

Urine

A

Carcinome urothélial de haut grade

765
Q

Urine

A

Haut : uretère bénin

Bas : uretère avec Carcinome urothélial de haut grade

766
Q

Urine

A

Carcinome urothélial de haut grade dans une vessie iléale

767
Q

Urine

A

Carcinome urothélial de haut grade dans une vessie iléale

768
Q

Urine

A

Carcinome urothélial de haut grade avec différentiation malpighienne

769
Q

Urine

A

Carcinome urothélial de haut grade avec différentiation malpighienne

770
Q

Urine

A

Carcinome urothélial de haut grade avec différentiation malpighienne

771
Q

Urine

A

Carcinome urothélial de haut grade avec différentiation glandulaire

772
Q

Urine

A

Carcinome urothélial de haut grade avec différentiation glandulaire

773
Q

Urine

A

Carcinome urothélial de haut grade avec différentiation glandulaire

774
Q

Urine

A

Carcinome urothélial de haut grade avec différentiation glandulaire

775
Q

Urine

A

Carcinome urothélial de bas-grade

776
Q

Urine

A

Carcinome urothélial de bas-grade

777
Q

Urine

A

Oeuf de schistosomiase

778
Q

Urine

A

Schistiosomase

779
Q

Urine

A

Carcinome épidermoïde

780
Q

Urine

A

Carcinome épidermoïde

781
Q

Urine

A

Carcinome épidermoïde

782
Q

Urine

A

Carcinome épidermoïde

783
Q

Urine

A

Carcinome épidermoïde

784
Q

Urine

A

ADK NOS: cytoplasme vacuolisé, noyau excentré, nucléole.

Dans un seul fragment, difficile de déterminer si la vacuolisation est 2e dégénérescence ou différenciation glandulaire. Si celle-ci est généralisée è plusieurs fragments, probablement différenciation.

785
Q

Urine

A

ADK entérique (cylindrique, peu de cytoplasme vacuolisé)

786
Q

Urine

A

ADK cellules claires: hobnail et vacuolisé, gros nucléole, noyau excentré

787
Q

Urine

A

Adénocarcinome à cellules en bagues

788
Q

Urine

A

Carcinome à petites cellules

789
Q

Urine

A

Carcinome à petites cellules

790
Q

Urine

A

Léiomyosarcome

Léiomyosarcome: cellules fusiformes atypiques + inflammation. Noyaux “cigar shaped”, légèrement hyperchromatiques, cytoplasme modérément abondant mal défini

791
Q

Urine

A

Figure 03-01. Normal Voided Urine. Most benign voided urine samples show a mixture of urothelial cells and squamous cells. In voided urine, most of the urothelial cells are of “intermediate” type, with an oval or pyramidal shape; they resemble the parabasal cells of the cervix.

792
Q

Urine

A

Figure 03-02. Cytoplasmic Inclusions (Melamed-Wolinska Bodies). Degenerating urothelial cells frequently have round, red (or sometimes green) cytoplasmic inclusions of varying sizes. A normal columnar-shaped urothelial cell is also present.

793
Q

Urine

A

Figure 03-03. Umbrella Cells (Ureteral Washing). These are the largest urothelial cells. They cover the surface of the urothelium and are often binucleated or multinucleated. Normal columnar urothelial cells are also present.

794
Q

Urine

A

Figure 03-04. Benign Urothelial Cells Can Have a Folded and Flattened Nucleus (Catheterized Specimen). The nucleus of benign urothelial cells is not always perfectly round. Some indentation and deformation, including straight edges that give the cells a flat geometric contour, are common. They are recognized as benign because of their normal nuclear-to-cytoplasmic ratio and normochromasia.

795
Q

Urine

A

Figure 03-05. Basal Urothelial Cells (Catheterized Specimen). Basal urothelial cells are rare in voided urine but common in catheterized specimens and usually tightly clustered.

796
Q

Urine

A

Figure 03-06. Seminal Vesicle or Prostatic Epithelial Cells (Voided Urine). These cells are recognized because of their golden-brown pigment. Sometimes they are less well preserved than seen here.

797
Q

Urine

A

Figure 03-07A. Ileal Loop Specimen. (A) Most of the cells in an ileal loop specimen are degenerated intestinal cells and look very much like macrophages. (B) Degenerated intestinal cells can have Melamed-Wolinska bodies (arrows) just like urothelial cells. Lubricant is present (arrowheads).

798
Q

Urine

A

Figure 03-07B. Ileal Loop Specimen. (A) Most of the cells in an ileal loop specimen are degenerated intestinal cells and look very much like macrophages. (B) Degenerated intestinal cells can have Melamed-Wolinska bodies (arrows) just like urothelial cells. Lubricant is present (arrowheads).

799
Q

Urine

A

Figure 03-08A. Polyomavirus Infection. (A) In some cases, the nucleus is filled with and expanded by a glassy basophilic inclusion. Nuclear chromatin is pushed to the nuclear membrane, giving it a thickened and beaded appearance. (B) Some of the affected cells have a characteristic tear-drop or comet shape. (C) The inclusions do not always completely fill the nucleus, leaving clumps and threads of visible chromatin. Note the marked nuclear enlargement by comparison with the nuclei of normal squamous cells. (D) Some chromatin texture is visible. Note how round the nucleus is.

800
Q

Urine

A

Figure 03-08B. Polyomavirus Infection. (A) In some cases, the nucleus is filled with and expanded by a glassy basophilic inclusion. Nuclear chromatin is pushed to the nuclear membrane, giving it a thickened and beaded appearance. (B) Some of the affected cells have a characteristic tear-drop or comet shape. (C) The inclusions do not always completely fill the nucleus, leaving clumps and threads of visible chromatin. Note the marked nuclear enlargement by comparison with the nuclei of normal squamous cells. (D) Some chromatin texture is visible. Note how round the nucleus is.

801
Q

Urine

A

Figure 03-08C. Polyomavirus Infection. (A) In some cases, the nucleus is filled with and expanded by a glassy basophilic inclusion. Nuclear chromatin is pushed to the nuclear membrane, giving it a thickened and beaded appearance. (B) Some of the affected cells have a characteristic tear-drop or comet shape. (C) The inclusions do not always completely fill the nucleus, leaving clumps and threads of visible chromatin. Note the marked nuclear enlargement by comparison with the nuclei of normal squamous cells. (D) Some chromatin texture is visible. Note how round the nucleus is.

802
Q

Urine

A

Figure 03-08D. Polyomavirus Infection. (A) In some cases, the nucleus is filled with and expanded by a glassy basophilic inclusion. Nuclear chromatin is pushed to the nuclear membrane, giving it a thickened and beaded appearance. (B) Some of the affected cells have a characteristic tear-drop or comet shape. (C) The inclusions do not always completely fill the nucleus, leaving clumps and threads of visible chromatin. Note the marked nuclear enlargement by comparison with the nuclei of normal squamous cells. (D) Some chromatin texture is visible. Note how round the nucleus is.

803
Q

Urine

A

Figure 03-09A. Condyloma Acuminatum of Bladder (Catheterized Urine). (A) The sample contains koilocytes. (B) A bladder biopsy confirmed the diagnosis (hematoxylin and eosin stain).

804
Q

Urine

A

Figure 03-10. Chemotherapy Effect (Catheterized Urine). This enormous multinucleated cell has a normal nuclear-to-cytoplasmic ratio. Note that, where the nuclei are not overlapped, one can tell that the chromatin is finely textured. Coarse vacuolization is typical of benign reactive changes, including chemotherapy and radiation effect.

805
Q

Urine

A

Figure 03-11. Benign Stone Atypia (Voided Urine). In some patients with stones, urothelial cells are markedly abnormal, with hyperchromatic and angulated nuclei. A distinction from urothelial carcinoma in such cases is impossible. The patient’s age (27 years old) was the only clue that these cells might not be malignant. A subsequent computed tomography scan demonstrated bilateral renal stones. The exceptional atypia of these cells prompted a suspicious interpretation. Cystoscopic evaluation of the bladder, kidneys, and ureters was normal.

806
Q

Urine

A

Figure 03-12A. Nephrogenic Adenoma (Catheterized Urine). (A) The cells are smaller than intermediate urothelial cells, with granular cytoplasm and a round nucleus. (B) A bladder biopsy demonstrates the resemblance to renal tubular epithelium (hematoxylin and eosin stain). The cells are positive for PAX8 (Inset).

807
Q

Urine

A

Figure 03-13. High-Grade Urothelial Carcinoma (Catheterized Urine). Numerous isolated malignant cells have an enlarged nucleus, coarsely textured chromatin, and a markedly increased nuclear-to-cytoplasmic ratio. An occasional cell has a mucin vacuole, which is not uncommon.

808
Q

Urine

A

Figure 03-14. High-Grade Urothelial Carcinoma With Jet-Black Chromatin (Ileal Loop Specimen). The cells have markedly irregular nuclear outlines, including nuclear points, but in many places the chromatin is smooth and black rather than coarsely granular.

809
Q

Urine

A

Figure 03-15. High-Grade Urothelial Carcinoma With Straight and Curved Nuclei (Voided Urine). The nuclei are elongate and dark, with either a straight or curved edge that imparts a sickle or crescent-moon shape.

810
Q

Urine

A

Figure 03-16A. High-Grade Urothelial Carcinoma With Umbrella-Cell Features (Catheterized Urines). (A) This malignant cell is large, with a markedly enlarged nucleus and prominent nucleoli. In most examples, like this one, the nuclear-to-cytoplasmic ratio is elevated, and there are usually far too many such cells for them to be normal umbrella cells, yet the nuclear membrane is smooth and regular, and the chromatin is finely textured. (B) Some of these “umbrella-cell” variants have obviously malignant nuclei, even though the nuclear-to-cytoplasmic ratio is only mildly increased.

811
Q

Urine

A

Figure 03-16B. High-Grade Urothelial Carcinoma With Umbrella-Cell Features (Catheterized Urines). (A) This malignant cell is large, with a markedly enlarged nucleus and prominent nucleoli. In most examples, like this one, the nuclear-to-cytoplasmic ratio is elevated, and there are usually far too many such cells for them to be normal umbrella cells, yet the nuclear membrane is smooth and regular, and the chromatin is finely textured. (B) Some of these “umbrella-cell” variants have obviously malignant nuclei, even though the nuclear-to-cytoplasmic ratio is only mildly increased.

812
Q

Urine

A

Figure 03-17A. High-Grade Urothelial Carcinoma With Pale Chromatin (Catheterized Urine). (A) The malignant cells have markedly enlarged nuclei but relatively pale chromatin, and there is a mitosis (arrow). (B) The marked nuclear enlargement can be appreciated by comparing to adjacent normal urothelial cells on the right.

813
Q

Urine

A

Figure 03-17B. High-Grade Urothelial Carcinoma With Pale Chromatin (Catheterized Urine). (A) The malignant cells have markedly enlarged nuclei but relatively pale chromatin, and there is a mitosis (arrow). (B) The marked nuclear enlargement can be appreciated by comparing to adjacent normal urothelial cells on the right.

814
Q

Urine

A

Figure 03-18. High-Grade Urothelial Carcinoma With Smooth Round Nuclei and Granular Chromatin. The nuclear-to-cytoplasmic ratio is very high, and chromatin is coarse and clumpy.

815
Q

Urine

A

Figure 03-19. High-Grade Urothelial Carcinoma With Smooth Round Nuclei and Prominent Nucleoli. The nuclear-to-cytoplasmic ratio is increased, and nucleoli are prominent.

816
Q

Urine

A

Figure 03-20. High-Grade Urothelial Carcinoma With Small Nuclei (Ileal Loop). The nuclear-to-cytoplasmic ratio is very high, the nuclear outline is irregular, and the cells may have one or more nucleoli, but the chromatin is not coarse and clumpy. These cells are smaller than reactive urothelial cells.

817
Q

Urine

A

Figure 03-21. High-Grade Urothelial Carcinoma With Extensive Degeneration (Voided Urine). The sharp angularity (“points”) of degenerated cells helps to identify them as malignant.

818
Q

Urine

A

Figure 03-22A. Urothelial Carcinoma Variants. (A) Some of the malignant cells show squamous differentiation, manifested by cytoplasmic orangeophilia. (B) Some urothelial carcinomas have foci of adenocarcinoma.

819
Q

Urine

A

Figure 03-22B. Urothelial Carcinoma Variants. (A) Some of the malignant cells show squamous differentiation, manifested by cytoplasmic orangeophilia. (B) Some urothelial carcinomas have foci of adenocarcinoma.

820
Q

Urine

A

Figure 03-23. Suspicious for Urothelial Carcinoma. The suspicious cells are few in number and poorly preserved. The irregularity of the nuclear membrane is more typical of malignancy than polyomavirus effect.

821
Q

Urine

A

Figure 03-24. Clear Cell Adenocarcinoma. The cells are large, with abundant clear cytoplasm, large nuclei, and large nucleoli.

822
Q

Urine

A

Figure 03-25. Prostatic Carcinoma (Voided Urine). Many prostate cancers are impossible to distinguish from urothelial carcinoma. Inset, Immunohistochemistry for prostatic markers can be helpful (cell block, prostate specific antigen).

823
Q

Urine

A

Figure 03-26A. Metastatic Colon Cancer to the Bladder Neck (Voided Urine). (A) The majority of the malignant cells are round, with dark, angulated nuclei. Distinction from urothelial carcinoma is not possible by cytomorphology. (B) A cell block preparation contains occasional degenerated malignant cells. (Inset) the malignant cells show nuclear reactivity for CDX-2, commonly seen in colon cancers and usually absent in urothelial cancers. The malignant cells were also positive for cytokeratin 20 and negative for cytokeratin 7, the typical keratin profile of colon cancer.

824
Q

Thyroïde

A

Non-diagnostic/Insatisfaisant

Sang et rares lymphocytes

825
Q

Thyroïde

A

Non-diagnostic/Insatisfaisant

Artéfacts de séchage extensifs

826
Q

Thyroïde

A

Non-diagnostic/Insatisfaisant

Contenu kystique seulement: nombreux macrophages et hémosidérophages sans cellules folliculaires

827
Q

Thyroïde

A

Non-diagnostic/Insatisfaisant

Macrophages avec hémosidérine

828
Q

Thyroïde

A

Non-diagnostic/Insatisfaisant

Le sang cache tout

829
Q

Thyroïde

A

Non-diagnostic/Insatisfaisant

Cellules ciliées respiratoires

830
Q

Thyroïde

A

Bénin - Nodule colloïde

831
Q

Thyroïde

A

Non-diagnostic/Insatisfaisant

Contaminant

832
Q

Thyroïde

A

Bénin

Feuillets de petites cellules à noyau rond

Espacement régulier, nid d’abeilles

833
Q

Thyroïde

A

Bénin

Macrofollicules formant des sphères

Feuillets régulièrement espacés

834
Q

Thyroïde

A

Bénin

Nodule colloïde

835
Q

Thyroïde

A

Bénin

Nodule colloïde

836
Q

Thyroïde

A

Bénin

Diff-Quik-stained smear of an adenomatous nodule shows follicles of varying sizes, watery colloid, blood, and scant, dense colloid (black solid arrow).

837
Q

Thyroïde

A

Bénin

Diff-Quik-stained smear shows abundant watery colloid in an adenomatous nodule. Sometimes colloid cracks in geometric pattern and falls off the slide.

838
Q

Thyroïde

A

Bénin

Pap: evenly spaced cells with a honeycomb pattern. Variation in nuclear size is common in adenomatous nodule. There is no nuclear irregularity or overlap.

839
Q

Thyroïde

A

Bénin

Nodule folliculaire bénin

Cytoplasme délicat avec bordures mal définies

Noyaux de la taille d’une hématie

Parfois, pigment d’hémosidérine

840
Q

Thyroïde

A

Bénin

Nodule folliculaire bénin

Noyaux à chromatine granulaire et nucléole absent ou discret

841
Q

Thyroïde

A

Bénin

Nodule folliculaire bénin

842
Q

Thyroïde

A

Bénin

Cellules de revêtement kystique: cellules pâles au noyau incisuré avec une architecture type “culture tissulaire”.

Parfois atypiques (noyaux élargis) mais membrane nucléaire reste lisse et régulière, chromatine fine et au plus un petit nucléole.

843
Q

Thyroïde

A

Bénin

Symplastic/repair-like reactive changes seen on Diff-Quik characterized by a streaming pattern and spindling of cells with cytoplasmic tails (black solid arrow) are shown. The nuclei are regular with smooth nuclear contours and regular small nucleoli (black curved arrow).

844
Q

Thyroïde

A

Bénin

Nodule folliculaire bénin avec modifications réactionnelles

845
Q

Thyroïde

A

Bénin

Dégénération kystique avec macrophages abondants et peu de cellules folliculaires bénignes.

846
Q

Thyroïde

A

Bénin - Thyroïdite lymphocytaire

847
Q

Thyroïde

A

Bénin - Thyroïdite lymphocytaire

Population lymphocytaire hétérogène avec petits lymphocytes matures et plus grands lymphocytes activés réactionnels

848
Q

Thyroïde

A

Bénin - Thyroïdite lymphocytaire

Cellules de Hürthle avec cytoplasme abondant identifiées en amas avec un infiltrat lymphocytaire en background

849
Q

Thyroïde

A

Bénin

Pap: Hürthle/oncocytic (white curved arrow) cells with abundant granular cytoplasm in a background of variably sized lymphocytes. Note the infiltration of lymphocytes into the groups of oncocytic cells (black solid arrow).

850
Q

Thyroïde

A

Bénin - Thyroïdite lymphocytaire

Polymorphous population of lymphocytes with tingible body macrophages (white curved arrow) in this Diff-Quik-stained smear from an active lymphocytic thyroiditis is shown.

851
Q

Thyroïde

A

Bénin - Thyroïdite de de Quervain

Granulome bien formé, non nécrosant

Histiocytes: noyaux allongés, disposés aléatoirement et aspect syncitial

852
Q

Thyroïde

A

Bénin

Thyroïdite granulomateuse

853
Q

Thyroïde

A

Bénin

Diff-Quik-stained slide shows granulomatous thyroiditis (GT). Chronic inflammation in the background may mimic lymphocytic thyroiditis.

854
Q

Thyroïde

A

Bénin - Thyroïdite subaiguë

Abondance de cellules géantes multinucléées

855
Q

Thyroïde

A

Bénin - Thyroïdite de de Quervain

Pap: multinucleated giant cells in a background of necrosis and acute and chronic inflammation. Multinucleated cells may have up to 50 nuclei per cell.

856
Q

Thyroïde

A

Bénin - Thyroïdite de Riedel

Étalement hypocellulaire

Rares cellules fusiformes

Rares cellules inflammatoires

857
Q

Thyroïde

A

Bénin - Goïtre amyloïde

858
Q

Thyroïde

A

Bénin - Goïtre amyloïde

859
Q

Thyroïde

A

Bénin - Thyroïde noire

860
Q

Thyroïde

A

Bénin

Thyroïde noire

861
Q

Thyroïde

A

Bénin - Thyroïde noire

862
Q

Thyroïde

A

Bénin - Modifications radiques

863
Q

Thyroïde

Patient déjà traité pour une néoplasie thyroïdienne

A

Bénin - Modifcations radiques

864
Q

Thyroïde

A

Bénin - Maladie de Graves

Cellules en flamèches

865
Q

Thyroïde

A

Bénin - Maladie de Graves

Diff-Quik-stained sheet of benign follicular cells shows marginal cytoplasmic vacuoles with magenta-pink frayed edges (black solid arrow), the so-called flame cells seen in Graves disease. (Courtesy S. Ali, MD.)

866
Q

Thyroïde

A

Bénin - Maladie de Graves

Noyaux augmentés de volume p/r hématies, vésiculaires avec nucléoles. Anisonucléose proéminente. Cytoplasme granulaire et « oncocytoïde ».

867
Q

Thyroïde

A

Bénin - Maladie de Graves

868
Q

Thyroïde

A

Bénin - Maladie de Graves

Pap-stained posttreatment aspirate of Graves disease shows Hürthle cells with atypia (black solid arrow), albeit with a low N:C ratio, and scattered lymphocytes (black curved arrow).

869
Q

Thyroïde

A

Néoplasme folliculaire

870
Q

Thyroïde

A

Néoplasme folliculaire

871
Q

Thyroïde

A

Néoplasme folliculaire

872
Q

Thyroïde

A

Néoplasme folliculaire

Faible grossissement: aspirat cellulaire, cellules folliculaires uniformes arrangées en amas serrés et en microfollicules.

873
Q

Thyroïde

A

Néoplasme folliculaire

Faible grossissement: aspirat cellulaire, cellules folliculaires uniformes arrangées en amas serrés et en microfollicules.

874
Q

Thyroïde

A

Néoplasme folliculaire

Plus fort grossissement: noyaux ronds, uniformes en taille, avec chromatine fine et granulaire, nucléole discret

875
Q

Thyroïde

A

Néoplasme folliculaire

Plus fort grossissement: noyaux ronds, uniformes en taille, avec chromatine fine et granulaire, nucléole discret

876
Q

Thyroïde

A

Néoplasme folliculaire

877
Q

Thyroïde

A

Néoplasme folliculaire

Pap stain shows microfollicular complex with waxy green central colloid (white curved arrow) surrounded by follicular cells (black solid arrow) from a thyroid aspiration of a follicular carcinoma.

878
Q

Thyroïde

A

Néoplasme à cellules oncocytaires

879
Q

Thyroïde

A

Néoplasme à cellules oncocytaires

880
Q

Thyroïde

A

Néoplasme à cellules oncocytaires

881
Q

Thyroïde

A

Néoplasme à cellules oncocytaires

882
Q

Thyroïde

A

Néoplasme à cellules oncocytaires

Diff-Quik stain shows Hürthle cells with small cell dysplasia (cyan solid arrow) and large cell dysplasia with > 2x nuclear size variation (white solid arrow) in a case interpreted as suspicious for follicular neoplasm, Hürthle cell type.

883
Q

Thyroïde

A

Néoplasme à cellules oncocytaires

Amas composés exclusivement d’oncocytes

Small cell dysplasia: moins de cytoplasme (haut N:C)

884
Q

Thyroïde

A

Néoplasme à cellules oncocytaires

Dysplasie à petites cellules

885
Q

Thyroïde

A

Néoplasme à cellules oncocytaires

Oncocytes en feuillets syncytiaux ou isolés

Small et large cell dysplasia

886
Q

Thyroïde

A

Néoplasme à cellules oncocytaires

Cellules de Hürthle non cohésives

Small et large cell dysplasia

Absence de colloïde

Présence de vaisseaux qui traversent les amas

887
Q

Thyroïde

A

Néoplasme à cellules oncocytaires

888
Q

Thyroïde

A

Bénin - composante focale d’oncocytes

889
Q

Thyroïde

A

Carcinome médullaire

Pap : carcinoma médullaire - cellules discohésives, processus cytoplasmique, chromatique “coarse”, binucleation. Faire IHC.

890
Q

Thyroïde

A

Carcinome papillaire

Préparation en milieu liquide.

Patron en clou de tapissier des cellules tumorales entourant un psammome.

891
Q

Thyroïde

A

Carcinome papillaire

892
Q

Thyroïde

A

Carcinome papillaire

Absence de papilles; les cellules sont arrangées en amas très entassés avec noyaux qui se superposent.

Présence de psammomes.

893
Q

Thyroïde

A

Carcinome papillaire

Étalement hypercellulaire avec feuillets monocouches et fragments papillaires

894
Q

Thyroïde

A

Carcinome papillaire

Papilles avec axe fibrovasculaire (flèche blanche).

Plages de cellules détachées des axes (flèche noire)

895
Q

Thyroïde

A

Carcinome papillaire

Papilles vraies avec axe fibrovasculaire

896
Q

Thyroïde

A

Carcinome papillaire

Papille vraie avec axe fibro-vasculaire

897
Q

Thyroïde

A

Carcinome papillaire

Formation pseudo-papillaire (absence d’axe fibrovasculaire)

898
Q

Thyroïde

A

Carcinome papillaire

Tourbillon cellulaire: fortement caractéristique du carcinome papillaire classique. Agrégat concentrique de cellules tumorales, dont les cellules périphériques ont un noyau ovoïde et sont orientées perpendiculairement au rayon du tourbillon.

899
Q

Thyroïde

A

Carcinome papillaire

900
Q

Thyroïde

A

Carcinome papillaire

901
Q

Thyroïde

A

Carcinome papillaire

902
Q

Thyroïde

A

Carcinome papillaire

Incisures nucléaires, chromatine fine et poudreuse, micro-nucléoles

903
Q

Thyroïde

A

Carcinome papillaire

Diff-Quik: ↑ taille nucléaire, overlapping, chromatine fine, absence colloïde

904
Q

Thyroïde

A

Carcinome papillaire

Pap : multinucleated giant cell (white open arrow) and a syncytial group of cells with elongated nuclei. Nuclear grooves (white solid arrow) are present in most of the cells in this cluster.

905
Q

Thyroïde

A

Carcinome papillaire variante folliculaire

906
Q

Thyroïde

A

Carcinome papillaire variante folliculaire

Pap: microfolliculaire avec overlapping. Chromatine pale poudreuse, petits nucléoles, rare incisures. Pas de pseudo-inclusions.

DX: suspect de papillaire. Histo: NIFTP

907
Q

Thyroïde

A

Carcinome papillaire variante folliculaire

908
Q

Thyroïde

A

Carcinome papillaire variante macrofolliculaire

909
Q

Thyroïde

A

Carcinome papillaire variante kystique

Changements kystiques proéminents avec macrophages/hémosidérophages abondants. Petit amas de cellules néoplasiques avec cytoplasme dense et une pseudo-inclusion.

910
Q

Thyroïde

A

Carcinome papillaire variante kystique

Pap: rare groupe de cellules avec noyau élargit, incisures, irrégularité membrane nucléaire. Quantitativement insuffisant pour DX de PTC

911
Q

Thyroïde

A

Carcinome papillaire variante kystique

Pap: cluster de cellules hypervacuolisées, au noyau élargit et irrégulier. Les cellules de la fleche noire sont dégénérées. Interprétation d’AUS car faible quantité de cluster

912
Q

Thyroïde

A

Pap: suspect de carcinoma papillaire avec changements kystiques. Plusieurs macrophages (fleche noire), peu de cellules folliculaires. Celles-ci démontrent irrégularité nucléaire et pseudoinclusions. Leur quantité est insuffisante pour DX de carcinoma papillaire.

913
Q

Thyroïde

A

Carcinome papillaire variante oncocytaire

Pap: cytoplasme granulaire abondant + noyaux de papillaire

914
Q

Thyroïde

A

Carcinome papillaire variante oncocytaire

(Pap)

a- cellules polygonales à plasmacytoïdes oncocytaires, discohésives avec noyaux pâle, micronucléole, pseudoinclusions et incisures. Ces cas miment le carcinome médullaire!!!!

b- Multiples pseudoinclusions dans une cellule oncocytaire au cytoplasme granulaire

915
Q

Thyroïde

A

Carcinome papillaire variante oncocytaire

Diff-Quik: cellules oncocytaires (cytoplasme granulaire abondant) au noyau irrégulier (flèche noire), possible pseudoinclusion (flèche blanche).

Critères nucléaires doivent être présent dans majorité des cellules pour DX de carcinome papillaire variante oncocytaire

916
Q

Thyroïde

A

Carcinome papillaire variante warthin-like

Pap : cellules oncocytaires trabéculaires avec irrégularité nucléaires et incisures. Lymphocytes dans background

917
Q

Thyroïde

A

Carcinome papillaire variante warthin-like

918
Q

Thyroïde

A

Carcinome papillaire variante warthin-like

919
Q

Thyroïde

A

Carcinome papillaire variante à cellules hautes

920
Q

Thyroïde

A

Carcinome papillaire variante à cellules hautes

Pap : cellules haute (hauteur 3x largeur) discohésives. Majorité des cellules ont une queue cytoplasmique.

921
Q

Thyroïde

A

Carcinome papillaire variante à cellules hautes

Pap : Pléomorphisme modéré-sévère. Présence de cellules allongées (fleche courbe noire), cytoplasmes clairs (fleche noire) ou oncocytaire (fleche vide

922
Q

Thyroïde

A

Carcinome papillaire avec un noyau en bulle de savon avec pseudo-inclusions multiples

923
Q

Thyroïde

A

Carcinome papillaire

Cellules hautes, avec cytoplasme 3x plus haut que large

924
Q

Thyroïde

A

Carcinome papillaire variante à cellules cylindriques

925
Q

Thyroïde

A

Carcinome papillaire variante à cellules cylindriques

Cellules peu cohésives, fusiformes.

926
Q

Thyroïde

A

Carcinome papillaire variante solide

927
Q

Poumon

A

Adénovirus

928
Q

Thyroïde

A

Carcinome papillaire variante sclérosante diffuse

Fragments papillaires avec psammomes dans un background lymphocytaire

Chromatine plus foncée que dans la variante classique

929
Q

Thyroïde

A

Carcinome papillaire variante sclérosante diffuse

Pap: Apparence squamoïde des cellules néoplasiques (qui n’ont pas ici les critères de carcinome papillaire). Peut être retrouvé de façon focale dans le carcinome papillaire classique mais en cas de variante sclérosante, sera plus étendue.

930
Q

Poumon

A

Adénocarcinome leipidique

931
Q

Thyroïde

A

Carcinome papillaire variante sclérosante diffuse

932
Q

Poumon

A

Adénocarcinome solide

933
Q

Thyroïde

A

Carcinome papillaire variante sclérosante diffuse

Diff-Quik stain : amas syncytial de cellules néoplasiques + stroma magenta

934
Q

Poumon

A

Adénocarcinome

935
Q

Thyroïde

Présence de caractéristiques nucléaires papillaires

A

Carcinome variante cribriforme-morulaire

Pap: plages fenestrés de cellules avec espaces vides sans colloïde

936
Q

Poumon

A

Adénocarcinome

937
Q

Thyroïde

A

Carcinome papillaire variante cribriforme morulaire

Pap: Fragments cohésifs complexes avec pseudoinclusions mais chromatine foncée.

Histo: morules cribriformes

938
Q

Thyroïde

A

Carcinome papillaire

Cordons anastomoses de cellules avec incisures. Comme les critères nucléaires du papillaires sont rares DX définitif difficile

939
Q

Poumon

A

Adénocarcinome

940
Q

Thyroïde

A

Carcinome papilliare variante en clous de tapissier

941
Q

Poumon

A

Adénocarcinome

942
Q

Poumon

A

Adénocarcinome

943
Q

Thyroïde

A

Carcinome papillaire variante en clou de tapissier

Diff-Quik : cellule en teardrop avec atypie et cytoplasme abundant (fleche noire).

Noyaux excentrés produisants un “bulge” donnant une apparence hobnail (fleche noire)

944
Q

Thyroïde

A

Carcinome papillaire variante en clous de tapissiers

945
Q

Poumon

A

Adénocarcinome

946
Q

Poumon

A

Alternaria

947
Q

Thyroïde

A

Carcinome pauvrement différencié

Patron architectural variable pouvant inclure des amas, des microfollicules et de nombreuses cellules isolées

948
Q

Poumon

A

Aspergillose

949
Q

Thyroïde

A

Carcinome pauvrement différencié

Petites cellules folliculaires arrangées en insulae avec entassement

950
Q

Poumon

A

Aspergillose

951
Q

Thyroïde

A

Carcinome pauvrement différencié

Des cellules endothéliales enveloppent souvent les insulae

952
Q

Poumon

A

Aspergillose

953
Q

Thyroïde

A

Carcinome pauvrement différencié

Diff-Quik: cellules isolées sur fond hémorragique sans colloïde. Vagues microfollicules et quelques cellules plus atypiques. Rare cellules oncocytaire (fleche bleue).

954
Q

Poumon

A

Bactéries de contamination orale

955
Q

Thyroïde

A

Carcinome pauvrement différencié

Pap : architecture trabéculaire. Petites cellules uniformes avec haut ratio N:C et quelques noyaux convolués (raisinoïdes) (fleche blanche ouverte). Mitose (fleche blanche fermée)

956
Q

Thyroïde

A

Carcinome pauvrement différencié

957
Q

Poumon

A

Carcinome NE à petites cellules

958
Q

Poumon

A

Carcinome NE à petites cellules

959
Q

Thyroïde

A

Carcinome anaplasique

960
Q

Poumon

A

Carcinome NE à petites cellules

961
Q

Thyroïde

A

Carcinome anaplasique

962
Q

Poumon

A

Carcinome NE à petites cellules

963
Q

Thyroïde

A

Carcinome anaplasique

964
Q

Poumon

A

Carcinome NE à petites cellules

965
Q

Thyroïde

A

Carcinome anaplasique

Diff-Quik: cellules malignes pléomorphes, nucléoles proéminents (fleche) et cytoplasme vaporeux

966
Q

Poumon

A

Carcinome NE à petites cellules

967
Q

Thyroïde

A

Carcinome anaplasique

Pap: Cellules épithélioïdes (polygonales) pléomorphes. Éclaircissement chromatinien et irrégularité contours nucléaires.

968
Q

Poumon

A

Carcinome NE à petites cellules

969
Q

Thyroïde

A

Carcinome anaplasique

Diff-Quick: Moins de pléomorphisme dans ces cellules majoritairement rondes, mais mitoses facilement identifiables

POURQUOI PAS POORLY DIFF OSTI

970
Q

Poumon

A

Carcinome épidermoïde

971
Q

Thyroïde

A

Carcinome anaplasique

Cellules tumorales fusiformes avec cytoplasme effilé

972
Q

Poumon

A

Carcinome épidermoïde

973
Q

Thyroïde

A

Carcinome anaplasique

Fragment de tumeur composée majoritairement de cellules fusiformes.

974
Q

Poumon

A

Carcinome épidermoïde

975
Q

Thyroïde

A

Carcinome anaplasique

Pap: PMN ++ , cellules tumorales dont une est multinucléée.

976
Q

Poumon

A

Carcinome épidermoïde

977
Q

Thyroïde

A

Carcinome anaplasique

Papa: Pléomorphisme dans ces cellules tumorales épithélioïdes. Formes binucléées, macronucléoles, chromatine clumpée et par endroit éclaircie (flèche). PMN.

978
Q

Poumon

A

Carcinome épidermoïde

979
Q

Thyroïde

A

Carcinome anaplasique

Pap: cellule tumorale géante multinucléée infiltrée par PMN

980
Q

Poumon

A

Carcinome épidermoïde

981
Q

Thyroïde

A

Carcinome anaplasique

Pap : cellules pléomorphes avec irrégularité de la membrane, chromatine grossière, macronucléoles (fleche)

982
Q

Poumon

A

Carcinome épidermoïde

983
Q

Thyroïde

A

Carcinome anaplasique

Pap : Cluster hyperchromatiques avec overlapping alternant avec cellules malignes indifférenciées (flèches). Inflammation et nécrose dans background

984
Q

Poumon

A

Carcinome épidermoïde

985
Q

Thyroïde

A

Carcinome anaplasique

986
Q

Poumon

A

Carcinome NE à grandes cellules

987
Q

Thyroïde

A

Carcinome médullaire

Flèche = amyloïde

988
Q

Thyroïde

A

Carcinome médullaire

989
Q

Poumon

A

Carcinome NE à grandes cellules

990
Q

Poumon

A

Cellules bronchiques réactionnelles avec cils

991
Q

Thyroïde

A

Carcinome médullaire

992
Q

Poumon

A

Cellules bronchiques avec corps de Creola

993
Q

Thyroïde

A

Carcinome médullaire

994
Q

Poumon

A

Cellules bronchiques réactionnelles

995
Q

Thyroïde

A

Carcinome médullaire

996
Q

Poumon

A

Cellules géantes (granulomes)

997
Q

Thyroïde

A

Carcinome médullaire

Grosse cellule tumorale avec granules cytoplasmiques rouges sur le Romanowsky

Flèche: pseudo-inclusion

Pointe de flèche: amyloïde

998
Q

Poumon

A

Cellules géantes (granulomes)

999
Q

Thyroïde

A

Carcinome médullaire

Pap: Pigmentation mélanotique (DDX mélanome qui lui aussi est en cellules isolées, épithélioïde ou fusiforme avec binucléations)

1000
Q

Thyroïde

A

Changements post-traitements

1001
Q

Thyroïde

A

Carcinome médullaire

Amyloïde abondante: matériel amorphe, cireux, vert pâle

1002
Q

Poumon

A

Changements réactionnelles avec barres terminales

1003
Q

Thyroïde

A

Amyloïde dans une préparation en milieu liquide: dense, amorphe et cireuse

1004
Q

Poumon

A

Changements réactionnelles et cellules normales

1005
Q

Poumon

A

Changements réactionnelles

1006
Q

Thyroïde

A

Carcinome médullaire

Pap : cellules discohésives, rondes et uniformes (DDX lymphome). Dépôts amyloides (flèches), difficile à distinguer de colloïde dense.

1007
Q

Poumon

A

Changements réactionnelles

1008
Q

Thyroïde

A

Carcinome médullaire

Pap : cellules fusiformes avec queues cytoplasmiques. Noyaux réguliers avec chromatine sel et poivre, dispersée.

1009
Q

Poumon

A

Changements réactionnelles

1010
Q

Thyroïde

A

Carcinome médullaire

Diff-Quik : carcinoma médullaire oncocytaire avec granules métachromatiques.

1011
Q

Poumon

A

Changements réactionnelles

1012
Q

Thyroïde

A

Carcinome médullaire

Pap: mixte de cellules fusiformes, bipolaires, oncocytaires avec pléomorphisme nucléaire

1013
Q

Poumon

A

CMV

1014
Q

Thyroïde

A

Carcinome médullaire

Atypie neuroendocrine: une cellule oncocytaire très atypique

1015
Q

Poumon

A

CMV

1016
Q

Poumon

A

Carcinome épidermoïde

1017
Q

Poumon

A

CMV

1018
Q

Poumon

A

Carcinome épidermoïde

1019
Q

Poumon

A

CMV

1020
Q

Poumon

A

Carcinome épidermoïde

1021
Q

Poumon

A

CMV

1022
Q

Thyroïde

A

Lymphome MALT

1023
Q

Poumon

A

Coccidioides

1024
Q

Thyroïde

A

DLBCL

1025
Q

Poumon

A

Coccidioides

1026
Q

LCR

A

Lymphome

1027
Q

Poumon

A

Corps amylacé

1028
Q

Poumon

A

Adénocarcinome

1029
Q

LCR

A

Lymphome

1030
Q

LCR

A

Corps asbestosique

1031
Q

Thyroïde

A

Figure 10-03A. Benign Follicular Nodule. (A) The fine-needle aspirate contains tissue fragments containing intact macrofollicles (Papanicolaou stain).

1032
Q

LCR

A

Adénocarcinome

1033
Q

Thyroïde

A

Figure 10-03B. Benign Follicular Nodule. (B) Macrofollicles often break into fragments and appear as sheets of various sizes. Although colloid is scant in this case, a predominantly macrofollicular architecture can be inferred from these fragments (Papanicolaou stain).

1034
Q

LCR

A

Adénocarcinome

1035
Q

Poumon

A

Corps asteroïde

1036
Q

Thyroïde

A

Figure 10-04A. Benign Follicular Nodule. (A) The follicular cells comprising this unfolded macrofollicle are evenly spaced. Pale green-blue colloid has escaped from the follicle (Papanicolaou stain).

1037
Q

Thyroïde

A

Figure 10-04B. Benign Follicular Nodule. (B) Normal follicular cells have coarsely granular chromatin; cytoplasm can be scant or moderately abundant (Papanicolaou stain).

1038
Q

Poumon

A

Corps d’asbestos

1039
Q

LCR

A

Adénocarcinome

1040
Q

Poumon

A

Corps de Creola

1041
Q

Thyroïde

A

Figure 10-05. Colloid (Benign Follicular Nodule). Colloid can congeal into opaque, irregularly shaped hyaline chunks with hard edges that are clearly visible on smears and liquid-based preparations (Papanicolaou stain).

1042
Q

Thyroïde

A

Figure 10-06A. Colloid (Benign Follicular Nodule). (A) On smears, watery colloid often covers the entire slide as a thin, translucent film (pink in this image) and is often admixed with blood (Papanicolaou stain).

1043
Q

Poumon

A

Corps de Creola

1044
Q

LCR

A

Adénocarcinome

1045
Q

Thyroïde

A

Figure 10-06A. Colloid (Benign Follicular Nodule). (B) On liquid-based preparations, watery colloid appears as torn, translucent sheets resembling tissue paper (Papanicolaou stain).

1046
Q

Thyroïde

A

Figure 10-07. Focal Hürthle Cell Metaplasia, Multinodular Goiter. Hürthle cells are a common finding in some cases of multinodular goiter. The cells are large and polygonal and have abundant, finely granular cytoplasm. Variation in nuclear size, as seen here, is common in nonneoplastic hürthle cell proliferations and does not signify neoplasia (Papanicolaou stain).

1047
Q

Poumon

A

Cristaux de Charcot-Leyden

1048
Q

LCR

A

Astrocytome anaplasique

Pertinence équivoque (PE)

1049
Q

Thyroïde

A

Figure 10-08. Cyst Lining Cells. Reactive follicular cell changes are often seen adjacent to areas of cystic degeneration. They have a characteristic pulled-out appearance that mimics reparative epithelium (Papanicolaou stain).

1050
Q

Poumon

A

Cryptocoque

1051
Q

Thyroïde

A

Figure 10-09A. Chronic Lymphocytic (Hashimoto) Thyroiditis. (A) Lymphoid cells are the predominant feature. Most are small, mature lymphocytes (Papanicolaou stain).

1052
Q

Poumon

A

Cryptocoque

1053
Q

Poumon

A

Granulome nécrosant

1054
Q

Poumon

A

Carcinome à petites cellules

1055
Q

Poumon

A

Granulome

1056
Q

Poumon

A

Carcinome à petites cellules

1057
Q

Thyroïde

A

Figure 10-09D. Chronic Lymphocytic (Hashimoto) Thyroiditis. (D) Hürthle cells with abundant cytoplasm are usually identified in clusters. Note the scattered lymphoid cells (Romanowsky stain).

1058
Q

Poumon

A

Hamartome pulmonaire

1059
Q

LCR

A

Cellules de Mollaret (méningite de Mollaret)

1060
Q

Thyroïde

A

Figure 10-10. Subacute Thyroiditis. (A) The most conspicuous finding is an abundance of multinucleated giant cells with bizarre shapes (Papanicolaou stain).

1061
Q

LCR

A

Cellules de Mollaret (méningite de Mollaret)

1062
Q

Poumon

A

Hamartome pulmonaire

1063
Q

Thyroïde

A

Figure 10-10. Subacute Thyroiditis. (B) Granulomas are often few in number. The nuclei of epithelioid histiocytes have a variety of elongated and curved shapes. Cytoplasm is abundant, clear, and poorly demarcated (Papanicolaou stain).

1064
Q

LCR

A

Cellules de Mollaret (méningite de Mollaret)

1065
Q

Thyroïde

A

Figure 10-11. Amyloid Goiter. Like colloid, amyloid forms opaque masses with irregular, sharp edges. Amyloid is deposited in the interstitium in patients with amyloid goiter; hence, aspirated amyloid fragments often contain entrapped fibroblasts (Papanicolaou stain).

1066
Q

LCR

A

Cellules de Mollaret (méningite de Mollaret)

1067
Q

Thyroïde

A

Figure 10-12. Black Thyroid. Follicular cells contain abundant coarse, brown cytoplasmic granules (Papanicolaou stain).

1068
Q

Poumon

A

Herpes

1069
Q

Thyroïde

A

Figure 10-13. Radioactive Iodine Effect. Follicular cells show marked variation in cellular and nuclear size, sometimes with conspicuous cytoplasmic vacuolization (Papanicolaou stain).

1070
Q

LCR

A

Cryptocoque

1071
Q

Poumon

A

Herpes

1072
Q

Thyroïde

A

Figure 10-14A. Suspicious for a Follicular Neoplasm. (A) A neoplasm should be suspected whenever a specimen is composed predominantly of microfollicles (Papanicolaou stain).

1073
Q

Poumon

A

Cryptocoque

1074
Q

Poumon

A

Herpes

1075
Q

Thyroïde

A

Figure 10-14A. Suspicious for a Follicular Neoplasm. (B) The cells of some follicular neoplasms are crowded haphazardly into cords or ribbons (trabeculae) (Papanicolaou stain).

1076
Q

Poumon

A

Herpes

1077
Q

Poumon

A

Cryptocoque

1078
Q

Thyroïde

A

Figure 10-15. Suspicious for a Follicular Neoplasm, Hürthle Cell Type. The sample is at least moderately cellular and composed exclusively of Hürthle cells (Papanicolaou stain).

1079
Q

Poumon

A

Cryptocoque

1080
Q

Thyroïde

A

Figure 10-16A. Mimics of a Hürthle Cell Neoplasm. (A) Metastatic renal cell carcinoma to the thyroid. The abundant cytoplasm of clear cell renal cell carcinomas mimics that of a Hürthle cell neoplasm, but it is thinner and more fragile-appearing than Hürthle cell cytoplasm (Papanicolaou stain).

1081
Q

Poumon

A

Histoplasmose

1082
Q

Poumon

A

Cryptocoque

1083
Q

Thyroïde

Marquage IHC pour la PTH

A

Figure 10-16A. Mimics of a Hürthle Cell Neoplasm. (B) Parathyroid carcinoma. Some parathyroid neoplasms have abundant oncocytic cytoplasm. The patient presented with hyperparathyroidism; a positive immunostain for parathyroid hormone on the cell block preparation was helpful for diagnosis (Papanicolaou stain).

1084
Q

Poumon

A

Histoplasmose

1085
Q

Poumon

A

Cryptocoque

1086
Q

Thyroïde

A

Figure 10-17. Papillary Thyroid Carcinoma, Classical Type. In classical papillary thyroid carcinoma, papillae with fibrovascular cores are often seen (Papanicolaou stain).

1087
Q

Poumon

A

Hyperplasie à cellules basales

1088
Q
A

DLBCL

1089
Q

Thyroïde

A

Figure 10-18. Papillary Thyroid Carcinoma, Classical Type. In some cases, papillae are absent, and the neoplastic cells are arranged in crowded sheets. Psammoma bodies are present (Papanicolaou stain).

1090
Q

Poumon

A

Hyperplasie des cellules à mucus

1091
Q

Thyroïde

A

Figure 10-19A. (A) Papillary thyroid carcinoma, follicular variant.

1092
Q

Poumon

A

Hyperplasie des cellules de réserves

1093
Q

LCR

A

DLBCL

1094
Q

Thyroïde

A

Figure 10-19B. (B) Follicular neoplasm (follicular adenoma).

1095
Q

LCR

A

Éosinophiles

1096
Q

Poumon

A

Hyperplasie des pneumocytes de type II

Pk c’est pas un ADK criss?

Réponse: Selon Cibas c’est corrélation clinique:

  • hyperplasie pneumocytes type II c’est dans contexte d’un DAD donc infiltrat bilat diffus et insuffisance respi
  • vs ADK c’est consolidation verre dépoli +/- solide)
1097
Q

Thyroïde

A

Figure 10-20. Papillary Thyroid Carcinoma. The neoplastic cells have pale, powdery chromatin. Other important nuclear changes are the circular, sharply defined intranuclear pseudoinclusion (arrow) and the nuclear groove (arrowhead). Note that the pseudoinclusion has the same color and consistency as the surrounding cytoplasm; a purely white hole is usually an artifact (Papanicolaou stain).

1098
Q

Thyroïde

A

Figure 10-21A. Papillary Thyroid Carcinoma Variants. (A) Oncocytic variant. The neoplastic cells of this variant have abundant granular cytoplasm resembling hürthle cell cytoplasm. Note the intranuclear pseudoinclusions (holes) (Papanicolaou stain).

1099
Q

Poumon

A

Infection à mycobactérie

1100
Q

Thyroïde

A

Figure 10-21B. Papillary Thyroid Carcinoma Variants. (B) Tall cell variant. The cells are large and have abundant elongated (“tall”) cytoplasm. Nuclear features typical of papillary carcinoma, including numerous intranuclear holes, are apparent (Papanicolaou stain).

1101
Q

Poumon

A

Macrophage alvéolaire

1102
Q

LCR

A

Épendymome

1103
Q

Thyroïde

A

Figure 10-22A. Noninvasive Follicular Thyroid Neoplasm with Papillary-Like Nuclear Features (Niftp). (A) NIFTP is often a predominantly microfollicular proliferation. Nuclear features of papillary carcinoma are incomplete or only focally present (inset). This FNA was interpreted as suspicious for papillary carcinoma.

1104
Q

LCR

A

Épendymome

1105
Q

Poumon

A

Mucor

1106
Q

Thyroïde

A

Figure 10-23A. Poorly Differentiated Thyroid Carcinoma. (A) The architectural pattern is variable and may include crowded groups, microfollicles, and numerous isolated cells. The isolated malignant cells resemble those of medullary thyroid carcinoma (Papanicolaou stain).

1107
Q

LCR

A

Germinome

1108
Q

Thyroïde

A

Figure 10-23A. Poorly Differentiated Thyroid Carcinoma. (B) Some tumors have a greater degree of nuclear atypia (Papanicolaou stain).

1109
Q

LCR

A

Glioblastome

Le LCR est la pire chose

1110
Q

Poumon

A

Œufs de Paragonimus westermani

1111
Q

Thyroïde

A

Figure 10-24A. Anaplastic Thyroid Carcinoma. (A) Tumor cells are dispersed as isolated epithelioid cells. Nuclei are large and hyperchromatic, and multinucleated tumor giant cells are present (Papanicolaou stain).

1112
Q

LCR

A

Glioblastome

Pas certain de la pertinence (PE)

1113
Q

Thyroïde

A

Figure 10-24A. Anaplastic Thyroid Carcinoma. (B) Some tumors have a predominantly sarcomatoid appearance (Romanowsky stain).

1114
Q

LCR

A

Glioblastome

1115
Q

Poumon

A

Pneumocystis

1116
Q

LCR

A

LLA

1117
Q

LCR

A

LLA

1118
Q

Thyroïde

A

Figure 10-25A. Primary Thyroid Lymphomas. Hodgkin lymphoma. Reed-Sternberg cells can be prominent and mimic the cells of anaplastic carcinoma (Papanicolaou stain).

1119
Q

Poumon

A

Pneumocystis

1120
Q

Thyroïde

A

Figure 10-26. Squamous Cell Carcinoma. A pleomorphic malignancy in the thyroid that is comprised of keratinized cells is considered a squamous cell carcinoma, but it has the same clinical behavior as an anaplastic carcinoma (Papanicolaou stain).

1121
Q

Poumon

A

Pneumocystis

1122
Q

LCR

A

LLA

1123
Q

Thyroïde

A

Figure 10-27A. Medullary Thyroid Carcinoma. (A) Smears show numerous isolated cells and small blobs of amyloid (arrows) (Papanicolaou stain).

1124
Q

LCR

A

LLC

1125
Q

Poumon

A

Pneumocystis

1126
Q

Thyroïde

A

Figure 10-27A. Medullary Thyroid Carcinoma. (B) Air-dried Romanowsky-stained preparations show fine red cytoplasmic granules, a helpful diagnostic feature.

1127
Q

LCR

A

LMA

1128
Q

Thyroïde

A

Figure 10-27A. Medullary Thyroid Carcinoma. C) Some medullary carcinomas have prominent intranuclear pseudoinclusions (Papanicolaou stain).

Bon à savoir, mais probablement pas questionnable (PE)

1129
Q

Poumon

A

Pneumocystis

1130
Q

LCR

A

Lymphocytes (méningite aseptique)

1131
Q

Thyroïde

A

Figure 10-28. Extranodal Marginal Zone B-Cell Lymphoma of the Thyroid. The neoplastic lymphoid cells are uniformly small to medium-sized, and there’s a prominent population of cells with irregularly shaped nuclei and prominent nucleoli (Papanicolaou stain).

1132
Q

Poumon

A

Pneumocystis

1133
Q

LCR

A

Lymphocytes (méningite aseptique)

1134
Q

Poumon

A

Pneumocystis

1135
Q

LCR

A

Lymphome primaire du SNC

1136
Q

Poumon

A

Pneumocytome

1137
Q

LCR

A

Macrophages abondants

1138
Q

Thyroïde

A

Figure 10-30. Parathyroid Adenoma. Smears are often highly cellular, and the cells are arranged in groups that resemble microfollicle fragments or, as see here, trabeculae. Colloid is absent (hematoxylin and eosin stain).

1139
Q

Poumon

A

Pneumocytome

1140
Q

Poumon

A

Protéinose alvéolaire

1141
Q

LCR

A

Médulloblastome

1142
Q

Poumon

A

Protéinose alvéolaire

1143
Q

LCR

A

Médulloblastome

1144
Q

Poumon

A

Protéinose alvéolaire

1145
Q

LCR

A

Médulloblastome

1146
Q

Poumon

A

Réponse granulomateuse à des œufs de Paragonimus

1147
Q

LCR

Enfant

A

Médulloblatome

1148
Q

Poumon

A

Rougeole

1149
Q

LCR

A

Mélanome

1150
Q

Poumon

A

Spirales de Curschmann

1151
Q

LCR

A

Méningite aseptique

1152
Q

Poumon

A

Spirales de Curschmann

1153
Q

LCR

A

Méningite aseptique

1154
Q

LCR

A

Méningite bactérienne aiguë

1155
Q

Poumon

A

Strongyloides

1156
Q

LCR

A

Normal avec lymphocytes et monocytes

1157
Q

Poumon

A

Strongyloides

1158
Q

LCR

A

Normal avec lymphocytes et monocytes

1159
Q

Poumon ou LCR je sais plus

A

Toxoplasmose

1160
Q

LCR

A

Normal

1161
Q

Poumon ou LCR je sais plus

A

Toxoplasmose

1162
Q

LCR

A

Normal - Cellules de la matrice germinale

1163
Q

Poumon

A

Toxoplasmose

1164
Q

LCR

A

Normal - Cellules du plexus choroïde

Le LCR est la pire chose

1165
Q

Poumon

A

Tumeur carcinoïde

1166
Q

LCR

A

Normal - Cellules du plexus choroïde

1167
Q

LCR

A

Normal - Cellules épendymaires en contexte de shunt ventriculo-péritonéal

je vote pour yeeter (PE)

1168
Q

Poumon

A

Tumeur carcinoïde

1169
Q

LCR

A

Normal - Cellules épendymaires en contexte de shunt ventriculo-péritonéal

1170
Q

LCR

A

Normal-Cellules épendymaires ou du plexus choroïde

1171
Q

Poumon

A

Tumeur carcinoïde

1172
Q

LCR

A

Normal-Chondrocyte

HUHUHOHO pas certain que ce soit pertinento (PE)

1173
Q

Poumon

A

Tumeur carcinoïde

1174
Q

LCR

A

Normal-Fragments de parenchyme cérébral

1175
Q

Poumon

A

Tumeur carcinoïde

1176
Q

LCR

A

Normal - Matériel hématopoïétique

JE PROTESTE (PE)

1177
Q

LCR

A

Normal-Neurones

1178
Q

Poumon

A

Tumeur carcinoïde

1179
Q

LCR

A

Norma l- Parenchyme cérébral

1180
Q

Poumon

A

Tumeur carcinoïde

1181
Q

LCR

A

Normal - Parenchyme cérébral

1182
Q

LCR

A

Plasmocytes

1183
Q

LCR

A

Toxoplasmose

1184
Q

LCR

A

Toxoplasmose

1185
Q

LCR

A

Tumeur du plexus choroïde

1186
Q

LCR

A

Tumeur rhabdoïde tératoïde atypique

1187
Q

Poumon

A

Cellules mésothéliales

1188
Q

Poumon

A

Cellules bronchiques réactionnelles

1189
Q

Patient avec ATCD de cancer

A

Effets post-traitements

1190
Q

Poumon

A

Hyperplasie des pneumocytes de type 2

1191
Q

Poumon

A

Granulome

1192
Q

Poumon

A

Granulome

1193
Q

Poumons

A

Pneumocystis jiroveci

1194
Q

Poumon

A

Pneumocystis jiroveci

1195
Q

Poumon

A

Amyloïde pulmonaire

1196
Q

Poumon

A

Protéinose alvéolaire

1197
Q

Poumon

A

Protéinose alvéolaire

1198
Q

Poumon

A

Pneumonie en organsisation Figure 02-25B. Organizing Pneumonia (Fine-Needle Aspiration). (A) Large, crushed tissue fragments comprised of fibroblasts and collagen are characteristic (Romanowsky stain). (B) Fibroblasts and collagen fill alveolar spaces, resulting in nodular masses (Masson bodies) (Romanowsky stain). (C) High magnification reveals a mix of fibroblasts, pneumocytes, macrophages, and collagen (Papanicolaou stain). (D) Cell block preparations show fragments of collagenous tissue with loosely arranged fibroblasts admixed with chronic inflammatory cells (hematoxylin and eosin stain).

1199
Q

Poumon

A

Hamartome pulmonaire

1200
Q

Poumon

A

Pneumocytome sclérosant

1201
Q

Poumon

A

Carcinome épidermoïde

1202
Q

Poumon

A

Carcinome épidermoïde

1203
Q

Poumon

A

Carcinome épidermoïde pauvrement différencié

1204
Q

Poumon

A

Adénocarcinome avec patron acinaire

1205
Q

Poumon

A

Adénocarcinome avec patron lépidique

1206
Q

Poumon

A

Adénocarcinome avec patron lépidique (variante mucineuse)

1207
Q

Poumon

A

Adénocarcinome variante solide

1208
Q

Poumon

A

Adénocarcinome

1209
Q

Poumon

A

Adénocarcinome variante papillaire

1210
Q

Poumon

A

Adénocarcinome variante papillaire

1211
Q

Poumon

A

Carcinome à cellules géantes

1212
Q

Poumon

A

Carcinoïde typique

1213
Q

Poumon

A

Carcinoïde typique

1214
Q

Poumon

A

Carcinoïde atypique

1215
Q

Poumon

A

Carcinome à petites cellules

1216
Q

Poumon

A

Carcinome à petites cellules

1217
Q

Plèvre

A

Cellules mésothéliales bénignes

1218
Q

Plèvre

A

Cellules mésothéliales bénignes

1219
Q

Péritoine

A

Cellules mésothéliales réactionnelles

1220
Q

Plèvre

A

Effusion éosinophilique (associé aux irritations chroniques de la plèvre)

1221
Q

Plèvre

A

Effusion lymphocytaire bénigne

1222
Q

Plèvre

A

Pleurite rhumatoïde Figure 04-07A. Rheumatoid Pleuritis. (A) Scattered multinucleated histiocytes and clumped granular debris in the background are characteristic of pleural fluids in patients with rheumatoid pleuritis (Papanicolaou stain). (B) A pleural biopsy has the appearance of an unfolded rheumatoid nodule, with epithelioid histiocytes, giant cells, and fibrinoid debris lining the pleural space (hematoxylin and eosin stain).

1223
Q

Plèvre

A

Pleurite lupique

1224
Q

Plèvre

A

Adénocarcinome Figure 04-09. Cell Block Lacunae (Pleural Fluid). In cell block sections, malignant cells are often situated in an empty space (lacuna); the reason for this artifact is unknown. It is commonly seen with adenocarcinomas, rarely with lymphomas and melanoma (hematoxylin and eosin stain).

1225
Q

Plèvre

A

Mésothéliome malin

1226
Q

Plèvre

A

Mésothéliome malin

1227
Q

Plèvre

A

Mésothéliome malin

1228
Q

Plèvre

A

Mésothéliome malin

1229
Q

Plèvre

A

Mésothéliome malin

1230
Q

Plèvre

A

Mésothéliome malin

1231
Q

Plèvre

A

Mésothéliome malin

1232
Q

Plèvre

A

Figure 04-13A. Malignant Mesothelioma, Unusual Variants. (A, B) Rarely, mesotheliomas show striking cytoplasmic vacuolization (“clear cell type”).

1233
Q

Plèvre

A

Figure 04-13C. Malignant Mesothelioma, Unusual Variants. (C, D) Some mesotheliomas are comprised of small cells, but the term “small cell mesothelioma” is discouraged to avoid confusion with small cell carcinoma of the lung (A and C, Papanicolaou stain; B and D, hematoxylin and eosin stain).

1234
Q

Plèvre

A

Cellules mésothéliales réactionnelles

1235
Q

Plèvre

A

Lymphome (DLBCL primaire des effusion)

1236
Q

Plèvre

A

Adénocarcinome

1237
Q

Plèvre

A

Adénocarcinome

1238
Q

Plèvre

A

Adénocarcinome métastatique (mammaire)

1239
Q

Plèvre

A

Adénocarcinome (gastrique diffus)

1240
Q

Plèvre

A

Carcinome (ici cellules claires du rein)

1241
Q

Plèvre

A

Carcinome (ici papillaire de la thyroïde)

1242
Q

Péritoine

A

Mucine extracellulaire (pseudomyxome peritonei)

1243
Q

Plèvre

A

Carcinome (ici lobulaire du sein)

1244
Q

Plèvre

A

Carcinome (ici lobulaire du sein)

1245
Q

Péritoine

A

Carcinome (ici carcinome épidermoïde du col)

1246
Q

Plèvre

A

Carcinome (ici épidermoïde pulmonaire)

1247
Q

Plèvre

A

Carcinome (ici épidermoïde pulmonaire)

1248
Q

Plèvre

A

Carcinome (ici petites cellules du poumon)

1249
Q

Plèvre

A

Carcinome (ici petites cellules du poumon)

1250
Q

Plèvre

A

Métastase de mélanome

1251
Q

Plèvre

A

Métastase de mélanome

1252
Q

Plèvre

A

DLBCL

1253
Q

Plèvre

A

Lymphome lymphoblastique

1254
Q

Plèvre

A

Cellules de RS (LH)

1255
Q

Plèvre

A

Myélome multiple

1256
Q

Péritoine

A

Tumeur de la granulosa adulte

1257
Q

Plèvre

A

Angiosarcome

1258
Q

Péritoine

A

Cellules mésothéliales

1259
Q

Péritoine

A

Cellules mésothéliales

1260
Q

Péritoine

A

Cellules mésothéliales

1261
Q

Péritoine

A

Balle de collagène entouré de cellules mésothéliales

1262
Q

Péritoine

A

Balle de collagène entouré de cellules mésothéliales

1263
Q

Péritoine

A

Macrophages

1264
Q

Péritoine

A

Cellules mésothéliales réactionnelles

1265
Q

Péritoine

A

Corps de psamomme en contexte d’endosalpingiose

1266
Q

Péritoine

A

Endométriose

1267
Q

Péritoine

A

Endométriose

1268
Q

Péritoine

A

Carcinome séreux de HG

1269
Q

Péritoine

A

Tumeur séreuse borderline

1270
Q

Péritoine

A

Adénocarcinome mucineux (ici de l’appendice)

1271
Q

Péritoine

A

Adénocarcinome (ici endométrioïde)

1272
Q

Péritoine

A

Adénocarcinome (ici à cellules claires de l’ovaire)

1273
Q

Péritoine Antécédent de néoplasie

A

Atypies post-traitement des cellules mésothéliales

1274
Q

Oesophage

A

Candida

1275
Q

Oesophage

A

HSV

1276
Q

Oesophage

A

HSV

1277
Q

Estomac

A

Atypies de réparations

1278
Q

Oesophage

A

Atypies de réparation

1279
Q

Oesophage

A

Atypies post-radiques

1280
Q

Oesophage

A

Œsophage de Barrett

1281
Q

Oesophage

A

Dysplasie de Barrett (BG)

(A) This columnar epithelium is notable for mucin depletion, an increased nuclear-to-cytoplasmic ratio, and marked nuclear crowding, but there is little nuclear atypia (smear, Papanicolaou stain)

1282
Q

Oesophage

A

Dysplasie de Barrett (BG)

Nuclear crowding and stratification are prominent, and there is focal loss of nuclear polarity in this strip of low-grade dysplasia (ThinPrep, Papanicolaou stain).

1283
Q

Oesophage

A

Dysplasie de Barrett (HG)

1284
Q

Oesophage

A

Adénocarcinome de l’oesophage

1285
Q

Oesophage

A

Carcinome épidermoïde de l’œsophage

1286
Q

Oesophage

A

Carcinome pauvrement différencié de l’œsophage (ici épidermoïde)

1287
Q

Oesophage

A

Léiomyome

1288
Q

Estomac

A

Helicobacter Pylori

1289
Q

Estomac

A

Helicobacter Pylori

1290
Q

Estomac

A

Carcinome à cellules indépendantes (ici en-bagues)

1291
Q

Duodénum

A

WDNET

1292
Q

FNA de masse gastrique

A

DLBCL

1293
Q

Estomac

A

MALT

1294
Q

FNA de masse gastrique

A

GIST

1295
Q

Duodénum

A

Microsporidiose

1296
Q

Duodénum

A

Cryptosporidiose

1297
Q

Ampoule duodénale

A

Adénome de l’ampoule

(A) Brushings show strips of dysplastic epithelium notable for crowded nuclei, mucin depletion, and an increased nuclear-to-cytoplasmic ratio. Some nuclei have drifted from their basal location toward the cell apex (i.e., there is loss of polarity). Although the nuclei are enlarged and elongated, they are relatively uniform in size, and nucleoli are inconspicuous (ThinPrep, Papanicolaou stain).

1298
Q

Anus

A

HSIL

1299
Q

Écoulement du mamelon

A

Histiocytes

1300
Q

Écoulement du mamelon

A

Suspect de néoplasie (DCIS de HG à la biopsie)

1301
Q

FNA mammaire

A

Métaplasie apocrine

1302
Q

FNA mammaire

A

Métaplasie apocrine

1303
Q

FNA mammaire

A

Bénin (CFK) A tightly cohesive cluster of ductal epithelial cells without atypia is noted adjacent to apocrine metaplastic cells (Papanicolaou stain).

1304
Q

FNA mammaire S100+

A

Tumeur à cellules granulaires

1305
Q

FNA mammaire S100+

A

Tumeur à cellules granulaires

1306
Q

FNA mammaire

A

Hyperplasie canalaire usuelle Note the interspersed myoepithelial cells, which stand out like sesame seeds on a bun (Papanicolaou stain).

1307
Q

FNA mammaire

A

Hyperplasie canalaire atypique In contrast to Fig. 9.5, there is less regular nuclear spacing, more overlapping, and more prominent nuclear atypia, with a suggestion of cribriform spaces. Such proliferative lesions cannot be categorized precisely by fine-needle aspiration. Histologic examination revealed atypical ductal hyperplasia bordering on noncomedo ductal carcinoma in situ (Papanicolaou stain).

1308
Q

FNA mammaire

A

Suspect de néoplasie The cells are loosely cohesive, with marked nuclear pleomorphism, prominent nucleoli, and a dirty background. Such specimens cannot be distinguished from invasive carcinoma by fine-needle aspiration. Histologic examination revealed comedo-type ductal carcinoma in situ (Papanicolaou stain).

1309
Q

FNA mammaire

A

Fibroadénome

1310
Q

FNA mammaire

A

Fibroadénome Branching antler-horn clusters are the predominant arrangement of cells. There are rare stripped naked nuclei and bipolar cells in the background, but they are not prominent in this case, making it difficult to distinguish from a ductal proliferative process (Romanowsky stain).

1311
Q

FNA mammaire

A

Fibroadénome Clusters of tightly cohesive cells with minimal nuclear atypia are characteristic of fibroadenomas (Romanowsky stain).

1312
Q

FNA mammaire

A

Fibroadénome

1313
Q

FNA mammaire

A

Fibroadénome Note the presence of nuclear atypia and prominent nucleoli. The tightness of the cluster is an important clue for avoiding an overdiagnosis of malignancy (Papanicolaou stain).

1314
Q

FNA mammaire Patiente jeune

A

Changements de lactations Cells in loose clusters can also be seen. Nuclei are round or oval, with prominent nucleoli (Thinprep, Papanicolaou stain).

1315
Q

FNA mammaire Patiente jeune

A

Changements de lactation Numerous stripped (“naked”) nuclei are seen

1316
Q

FNA mammaire

A

Nécrose adipeuse Necrotic fat is recognized by the absence of fat cell nuclei. In the early stage there is neutrophilic infiltration, as seen here; later stages demonstrate numerous foamy macrophages (lipophages)

1317
Q

FNA mammaire

A

Cryptocoque

Cryptococcose There are numerous intracellular yeast forms within macrophages (hematoxylin and eosin stain).

1318
Q

FNA mammaire

A

Adénocarcinome mammaire The cells are finely vacuolated and resemble histiocytes, but there is nuclear atypia and an increased nuclear-to-cytoplasmic ratio (Papanicolaou stain).

1319
Q

FNA mammaire Antécédent de néoplasie

A

Changements post-radiques

1320
Q

FNA mammaire Antécédent de néoplasie

A

Adénocarcinome In contrast to Fig. 9.16, the nuclei are irregular in contour, and the nuclear-to-cytoplasmic ratio is increased (Thinprep, Papanicolaou stain).

1321
Q

FNA mammaire Homme

A

Gynécomastie Cohesive flat sheets are identical to those of fibroadenoma and ductal proliferative processes (Papanicolaou stain).

1322
Q

FNA mammaire Homme

A

Gynécomastie Cohesive flat sheets are identical to those of fibroadenoma and ductal proliferative processes (Papanicolaou stain).

1323
Q

FNA mammaire

A

Lésion papillaire (ici papillome intra-canalaire)

1324
Q

FNA mammaire

A

Lésion papillaire (ici carcinome papillaire encapsulé)

1325
Q

FNA mammaire

A

Carcinome micro-papillaire Well-differentiated neoplasms like this invasive micropapillary carcinoma can be very difficult to diagnose (Thinprep, Papanicolaou stain).

1326
Q

FNA mammaire Même chose

A

Tumeur phyllode (A) Similar cytologically to a fibroadenoma, a phyllodes tumor has greater cellularity. (B) The difference between stromal and epithelial cells is subtle and can be obscured in a liquid-based preparation (Thinprep, Papanicolaou stain).

1327
Q

FNA mammaire Même chose

A

Tumeur phyllode Figure 09-23B. Phyllodes tumor. (A) Epithelial clusters in a phyllodes tumor resemble those of fibroadenoma but may be more crowded (Romanowsky stain). (B) Stromal clusters can be very cellular (Papanicolaou stain).

1328
Q

FNA mammaire

A

Malin (Tumeur phyllodes malignes)

1329
Q

FNA mammaire

A

Adénocarcinome canalaire A major criterion for the diagnosis of ductal carcinoma is a highly cellular specimen. Even at low magnification, nuclear atypia is prominent (Romanowsky stain).

1330
Q

FNA mammaire

A

Adénocarcinome canalaire The specimen is very cellular, and the cells are dispersed both as isolated cells and as loosely cohesive clusters (Papanicolaou stain).

1331
Q

Lésion cellulaire FNA mammaire

A

Many of the isolated cells of ductal cancers are comet-shaped, with a nucleus that protrudes from the cytoplasm. Whether or not there is marked nuclear atypia, a protuberant nucleus suggests carcinoma (Thinprep, Papanicolaou stain).

1332
Q

FNA mammaire

A

Note the pronounced nuclear pleomorphism and atypia, apparent with both the Romanowsky (A)

1333
Q

FNA mammaire

A

Adénocarcinome mammaire Note the pronounced nuclear pleomorphism and atypia, apparent with the Papanicolaou (B) stains.

1334
Q

FNA mammaire

A

Adénocarcinome mammaire The tumor cells are buried in a background of marked acute inflammation. In samples with abundant acute inflammation, a careful search must be conducted to exclude malignant cells (Papanicolaou stain).

1335
Q

FNA mammaire

A

Adénocarcinome mammaire variante lobulaire (A) a loose, single-file arrangement is apparent.

1336
Q

FNA mammaire

A

Carcinome mammaire variante lobulaire (B) Large, solitary intracytoplasmic vacuoles are present, imparting a signet-ring cell appearance (Papanicolaou stain).

1337
Q

FNA mammaire

A

LCIS The cells are present in loosely cohesive sheets (Papanicolaou stain). In contrast with Fig. 9.31, the cells are dispersed, and signet-ring cell forms are noted. Such a case is likely to be overdiagnosed as invasive lobular carcinoma (Papanicolaou stain).

1338
Q

FNA mammaire

A

Carcinome médullaire The cells are very large, with prominent nucleoli and frequent mitoses (hematoxylin and eosin stain). Lymphocytes and plasma cells are often noted in the background (hematoxylin and eosin stain).

1339
Q

FNA mammaire Même chose

A

Adénocarcinome mucineux

1340
Q

FNA mammaire

A

Adénocarcinome de bas-grade (tubulaire)

1341
Q

FNA mammaire

A

Carcinome (ici métaplasique) Isolated highly atypical spindle cells are noted (Romanowsky stain).

1342
Q

FNA mammaire

A

Carcinome apocrine

1343
Q

FNA mammaire

A

Carcinome adénoïde kystique

1344
Q

FNA mammaire

A

Carcinome adénoïde kystique

1345
Q

FNA mammaire Implant mammaire

A

Breast Implant–Associated Anaplastic Large Cell Lymphoma. (a) Large atypical lymphoid cells have prominent nucleoli (cytocentrifuge preparation, Romanowsky stain). (B) The excised implant reveals neoplastic cells surrounding the capsule (hematoxylin and eosin stain).

1346
Q

FNA mammaire

A

SCNEC

1347
Q

FNA ganglionnaire

A

Hyperplasie lymphoïde réactionnelle Immunoblasts and plasmacytoid lymphocytes are interspersed throughout a smear dominated by small round lymphocytes, creating a polymorphous cell picture. Lymphoglandular bodies are sprinkled between the cells (Romanowsky stain).

1348
Q

FNA ganglionnaire

A

Hyperplasie lymphoïde réactionnelle A capillary emanates diagonally from this follicular center fragment (dendritic-­lymphocytic aggregate), which contains a mixture of dendritic cells and a heterogeneous lymphocyte population. Note the dispersed lymphoglandular bodies (Romanowsky stain).

1349
Q

FNA ganglionnaire

A

Hyperplasie lymphoïde réactionnelle This dendritic-lymphocytic aggregate is a loose collection of small round lymphocytes and dendritic cells. The latter have pale nuclei with delicate cytoplasmic extensions (Papanicolaou stain).

1350
Q

FNA ganglionnaire

A

Hyperplasie lymphoïde réactionnelle This dendritic-lymphocytic aggregate is a loose collection of small round lymphocytes and dendritic cells. The latter have pale nuclei with delicate cytoplasmic extensions (Papanicolaou stain).

1351
Q

FNA ganglionnaire

A

Sarcoïdose (granulome) In sarcoidosis, the granulomas are tight aggregates of epithelioid histiocytes. The cells have oval or curved nuclei and abundant cytoplasm with indistinct borders (Romanowsky stain).

1352
Q

FNA ganglionnaire

A

Lymphadénite aiguë Neutrophils are mixed with small round lymphocytes. Note the chains of bacterial cocci (arrows) (Romanowsky stain).

1353
Q

FNA ganglionnaire

A

Maladie de la griffe de chat Cat Scratch Disease. A discrete aggregate of epithelioid histiocytes is surrounded by large numbers of neutrophils (Romanowsky stain).

1354
Q

FNA ganglionnaire

A

Maladie de la griffe de chat Cat Scratch Disease. A discrete aggregate of epithelioid histiocytes is surrounded by large numbers of neutrophils (Romanowsky stain).

1355
Q

FNA ganglionnaire

A

Lymphadénite mycobactérienne Mycobacterial Lymphadenitis. (A) There is necrotic material and degenerating nuclei (Romanowsky stain). (B) A stain for acid-fast bacilli shows many extracellular bacilli and a macrophage filled with organisms (Ziehl–Neelsen stain).

1356
Q

FNA ganglionnaire

A

Mycobacterial Lymphadenitis. (A) There is necrotic material and degenerating nuclei (Romanowsky stain). (B) A stain for acid-fast bacilli shows many extracellular bacilli and a macrophage filled with organisms (Ziehl–Neelsen stain).

1357
Q

FNA ganglionnaire

A

Maladie de Rosai-Dorfman An enormous histiocyte has engulfed many small lymphocytes (Romanowsky stain).

1358
Q

FNA ganglionnaire Jeune femme, lymphadénopathie cervicale

A

Lymphadénite de Kikuchi Histiocytes with contorted nuclei, including one with a c shape, contain ingested debris. These cells are significantly smaller than tingible-body macrophages (Romanowsky stain).

1359
Q

FNA ganglionnaire

A

Lymphadénite réactionnelle (mononucléose infectieuse) Many immunoblasts are mixed with small round lymphocytes and plasmacytoid lymphocytes (Romanowsky stain).

1360
Q

FNA ganglionnaire

Homme de 28 ans

A

Lymphadénite à VIH The FNA features are not specific, but hiv lymphadenitis can be suspected when (a) “giant” intact lymphoid follicles are seen (liquid-based preparation, Papanicolaou stain), and (b) numerous plasma cells and large lymphocytes are present (Romanowsky stain) in the appropriate clinical setting.

1361
Q

FNA ganglionnaire

A

Lymphadénite dermatopathique (A) Several macrophages contain coarse granular pigment in this aspirate from an enlarged inguinal node adjacent to a large tattoo. A heterogeneous population of lymphocytes is also present (Romanowsky stain). (B) Macrophages containing melanin pigment are characteristic of dermatopathic lymphadenitis associated with primary inflammatory dermatoses. Nonpigmented histiocytes or dendritic cells and small lymphocytes are also seen (hematoxylin and eosin stain).

1362
Q

FNA ganglionnaire axillaire

A

Lymphadénite à silicone This cluster of macrophages contains cells with multiple cytoplasmic vacuoles of varying size (liquid-based preparation, Papanicolaou stain).

1363
Q

FNA ganglionnaire

A

Lymphome de Hodgkin classique (A) A classic binucleated Reed–Sternberg (rs) cell is present (Romanowsky stain).

1364
Q

FNA ganglionnaire

A

(B) Two conspicuous mononuclear RS cells are surrounded by lymphocytes. The RS nucleus at the right is lobulated, whereas the one to the left has only slight bosselation. Both have macronucleoli (Papanicolaou stain).

1365
Q

FNA ganglionnaire

A

Lymphome de Hodgkin nodulaire à prédominance lymphocytaire The characteristic cell is the LP or “popcorn” cell, which has a large, highly convoluted nucleus. Although there are two nice examples here, they are often difficult to find: one must hunt for them because they are vastly outnumbered by small lymphocytes and other nonneoplastic lymphoid cells (Romanowsky stain).

1366
Q

FNA ganglionnaire

A

Lymphome de Hodgkin nodulaire à prédominance lymphocytaire The characteristic cell is the LP or “popcorn” cell, which has a large, highly convoluted nucleus. Although there are two nice examples here, they are often difficult to find: one must hunt for them because they are vastly outnumbered by small lymphocytes and other nonneoplastic lymphoid cells (Romanowsky stain).

1367
Q

FNA ganglionnaire

A

Lymphome folliculaire (A) Note the nuclear irregularities and occasional clefted nucleus. Lymphoglandular bodies are numerous (Romanowsky stain).

1368
Q

FNA ganglionnaire

A

Lymphome folliculaire (A) Note the nuclear irregularities and occasional clefted nucleus. Lymphoglandular bodies are numerous (Romanowsky stain).

1369
Q

FNA ganglionnaire

A

Lymphome à petits lymphocytes (A) The monomorphous neoplastic small lymphocytes have scant cytoplasm; some bare nuclei are present. The mostly round nuclei have very dense (“clotted”) chromatin. Lymphoglandular bodies are present in the background (Romanowsky stain).

1370
Q

FNA ganglionnaire

A

Lymphome à petits lymphocytes

1371
Q

FNA ganglionnaire

A

Lymphome (ici manteau)

1372
Q

FNA ganglionnaire

A

Lymphome (ici manteau)

1373
Q

FNA ganglionnaire

A

DLBCL

1374
Q

FNA ganglionnaire

A

DLBCL

1375
Q

FNA ganglionnaire

A

DLBCL (B) By definition, the nucleus of dlbcl cells (black arrow) is at least the size of a histiocyte nucleus (black arrowhead on foam-cell nucleus); the background t-cell nuclei (red arrow) are much smaller (Romanowsky stain).

1376
Q

FNA ganglionnaire

A

Lymphome B de haut-grade A monomorphous population of intermediate-sized cells closely mimics Burkitt lymphoma; note the tingible-body macrophage at upper right. Fish evaluation showed both myc and BCL2 translocations (not pictured) (Romanowsky stain).

1377
Q

FNA ganglionnaire

A

Lymphome de Burkitt (A) The intermediate-sized neoplastic lymphocytes have round nuclei, multiple indistinct nucleoli, blue cytoplasm, and small cytoplasmic vacuoles. Apoptotic bodies (arrows) are present (Romanowsky stain).

1378
Q

FNA ganglionnaire

A

Lymphome plasmablastique Plasmablastic Lymphoma. Large malignant cells are dispersed in a noncohesive pattern. The eccentric position of the nucleus is the only “plasmacytic” feature. Because this image is virtually impossible to distinguish from a plasmablastic myeloma or melanoma, correlation with clinical history and ancillary testing are necessary for definitive diagnosis (Romanowsky stain).

1379
Q

FNA ganglionnaire

A

Lymphome T anaplasique à grandes cellules Very large cells with marked variation in nuclear shape, including “donut” forms, are seen (Romanowsky stain).

1380
Q

Sang périphérique

A

Lymphome/Leucémie à cellules T de l’adulte (A) The most distinctive cell is the floret cell, a large lymphocyte with multiple radiating nuclear lobes (Romanowsky stain)

1381
Q

FNA ganglionnaire

A

Lymphome lymphoblastique A pure population of blasts is present with finely dispersed chromatin and nuclear molding. A mitotic figure is seen. Compare the size of the blasts with the neutrophil at the lower right (Romanowsky stain).

1382
Q

FNA ganglionnaire

A

Sarcome myéloïde (A) at low and medium magnification, blasts mimic lymphoma cells. Recognition of these cells as myeloid is often precluded when a tumor lacks cytoplasmic granules (Romanowsky stain). (B) Myeloid blasts are also difficult to identify as such with the pap stain, even if they show characteristic (but nonspecific) folded nuclear membranes and dispersed chromatin (liquid-based preparation, Papanicolaou stain). (C) Blasts are more easily recognized with romanowsky stains if the characteristic chromatin pattern, nucleoli, cytoplasmic granules (upper left), and accompanying granulocytic/eosinophilic forms are all present (Romanowsky stain).

1383
Q

FNA ganglionnaire

A

Carcinome épidermoïde HPV-induit (B) Nuclei are round to oval, and cytoplasm is scant. Cell borders are indistinct and intercellular bridges are not apparent (Papanicolaou stain).

1384
Q

FNA ganglionnaire

A

Mélanome métastatique Large nonpigmented cells are distributed in a noncohesive pattern. Tiny cytoplasmic bubbles (best seen with Romanowsky stains) and binucleated cells with wide spacing between the mirror-image nuclei are clues to the diagnosis (Romanowsky stain).

1385
Q

FNA ganglionnaire

A

Mélanome métastatique Large nonpigmented cells are distributed in a noncohesive pattern. Tiny cytoplasmic bubbles (best seen with Romanowsky stains) and binucleated cells with wide spacing between the mirror-image nuclei are clues to the diagnosis (Romanowsky stain).

1386
Q

FNA ganglionnaire

A

Séminome Partially vacuolated detached strips of cytoplasm create a striking “tigroid” background. Large germ cells are mixed with small lymphocytes (Romanowsky stain).

1387
Q

FNA du foie

A

Hépatocytes normaux Lipofuscin appears greenish with the Romanowsky stains. A pseudoinclusion is present (Romanowsky stain).

1388
Q

FNA du foie Patient cirrhotique

A

Bile Bile pigment is not usually seen unless there is bile stasis. With the Romanowsky stains, bile pigment is a dense, dark greenish-black pigment in the cytoplasm of hepatocytes (arrow). This case is from a patient with cirrhosis (Romanowsky stain).

1389
Q

FNA du foie

A

Stéatose This patient had a long-standing history of alcohol abuse, and diffuse nodularity was noted on computed tomography. Fine-needle aspiration demonstrated abundant fatty changes (Papanicolaou stain).

1390
Q

FNA du foie

A

Kyste hydatide (B) Rarely, an intact scolex and numerous hooklets are identified (Papanicolaou stain).

1391
Q

FNA du foie

A

Hémangiome (A) Smears show occasional tangles of spindle-shaped cells that are difficult to classify (Papanicolaou stain).

1392
Q

FNA du foie

A

Carcinome hépatocellulaire pauvrement différencié (B) Poorly differentiated tumors show little if any hepatocellular differentiation; they resemble poorly differentiated cholangiocarcinomas and metastatic carcinomas (Papanicolaou stain).

1393
Q

FNA du foie

A

Carcinome hépatocellulaire A markedly cellular ­preparation with abundant naked nuclei is characteristic of many hepatocellular carcinomas (Romanowsky stain).

1394
Q

FNA du foie

A

Carcinome hépatocellulaire type trabéculaire (A) Thick (>2 cells across) trabeculae are a characteristic feature of the classic hepatocellular carcinoma with a prominent trabecular pattern. Note the increased nuclear-to-cytoplasmic ratio of the neoplastic hepatocytes and the flat endothelial cells with spindle-shaped nuclei that wrap the trabeculae (Papanicolaou stain).

1395
Q

FNA du foie

A

Carcinome hépatocellulaire type trabéculaire (A) Thick (>2 cells across) trabeculae are a characteristic feature of the classic hepatocellular carcinoma with a prominent trabecular pattern. Note the increased nuclear-to-cytoplasmic ratio of the neoplastic hepatocytes and the flat endothelial cells with spindle-shaped nuclei that wrap the trabeculae (Papanicolaou stain).

1396
Q

FNA du foie

A

Carcinome hépatocellulaire type acinaire The cords of neoplastic cells are arranged in acini. Note the increased nuclear-to-cytoplasmic ratio, a key feature in the diagnosis of hepatocellular carcinoma (Papanicolaou stain).

1397
Q

FNA du foie

A

Carcinome hépatocellulaire Prominent transgressing vessels are characteristic of hepatocellular carcinoma (Papanicolaou stain).

1398
Q

FNA du foie

A

Hépatocytes avec bile (carcinome hépatocellulaire, mais je pense pas qu’on peut le dire ici)

1399
Q

FNA du foie

A

Carcinome hépatocellulaire pauvrement différencié A, Bizarre, atypical forms including spindle cells with intracytoplasmic globules are noted (smear, Romanowsky stain).

1400
Q

FNA du foie

A

Carcinome hépatocellulaire variante à cellules claires (A) As with many hepatocellular carcinomas, abundant bare nuclei are present. The cells have been disrupted, and the abundant spilled cytoplasmic glycogen gives a mottled appearance to the background that is reminiscent of the “tigroid” background seen with another glycogen-rich tumor, the seminoma (see Fig. 2.48) (Romanowsky stain).

1401
Q

FNA du foie

A

Carcinome hépatocellulaire, changement adipeux The malignant cells are distended by sharply outlined, large fat vacuoles (Romanowsky stain).

1402
Q

FNA du foie

A

Carcinome hépatocellulaire, changement adipeux The malignant cells are distended by sharply outlined, large fat vacuoles (Romanowsky stain).

1403
Q

FNA du foie

A

Carcinome hépatocellulaire variante fibrolamellaire (A) Large, atypical hepatocytes are accompanied by fibrous tissue. (B) The malignant cells have abundant granular cytoplasm and intracytoplasmic hyaline globules (arrows) (Papanicolaou stain).

1404
Q

FNA du foie

A

Carcinome hépatocellulaire variante fibrolamellaire (A) Large, atypical hepatocytes are accompanied by fibrous tissue. (B) The malignant cells have abundant granular cytoplasm and intracytoplasmic hyaline globules (arrows) (Papanicolaou stain).

1405
Q

FNA hépatique

A

Cholangiocarcinome (A) The tumor cells are in crowded sheets. Haphazard cellular arrangement and glandular differentiation are apparent (Papanicolaou stain). (B) Anisonucleosis and nuclear membrane irregularity are present (Romanowsky stain).

1406
Q

FNA du foie chez une enfant de 7 mois

A

Hépatoblastome

1407
Q

FNA du foie

A

Carcinome colique métastatique The columnar, picket-fence arrangement is apparent on smears as well. Nuclei are enlarged and ovoid (smear, Papanicolaou stain).

1408
Q

FNA du foie

A

TNE métastatique

1409
Q

FNA du foie

A

SCNEC (A) Note the abundant small blue cells with scant cytoplasm and pronounced molding. Nuclear crush artifact is prominent (Romanowsky stain).

1410
Q

FNA du foie

A

SCNEC (B) The cells are isolated and arranged in loosely cohesive clusters. The nuclear-to-cytoplasmic ratio is very high, nuclear molding is seen, and the chromatin is finely granular without nucleoli (Papanicolaou stain).

1411
Q

FNA du foie

A

Mélanome métastatique

1412
Q

FNA du foie

A

GIST (A) There are cohesive groups of spindle-shaped cells. Nuclear atypia is minimal in this case (Papanicolaou stain).

1413
Q

FNA rénale

A

Glomérule

1414
Q

FNA rénale

A

Glomérule

1415
Q

FNA d’une masse rénale

A

Oncocytome Smears show noncohesive cells with abundant granular cytoplasm and well-demarcated cell membranes. Nucleoli are evident (Papanicolaou stain).

1416
Q

FNA d’une masse rénale

A

Angiomyolipome (A) Cohesive tissue fragments comprised of spindle-shaped smooth muscle cells are usually the predominant finding (Papanicolaou stain). (B) Occasionally, thick-walled blood vessels are seen (Romanowsky stain).

1417
Q

FNA d’une masse rénale

A

Adénome métanéphrique (A and B) Smears show short tubules, cords, and tight balls of cells with scant cytoplasm (A, Papanicolaou stain; B, Romanowsky stain).

1418
Q

FNA d’une masse rénale pédiatrique

A

Tumeur de Wilms (A) This image illustrates only the blastemal component, which often predominates. Blastema cells are small to medium-sized, round-to-ovoid cells with scant cytoplasm (Papanicolaou stain). (B) Blastema resembles small round cell tumors. Note the conspicuous cellular molding. Five cells in the upper right suggest a possible tubular arrangement (Romanowsky stain).

1419
Q

FNA rénale

A

Pyélonéphrite xanthogranulomateuse (A) Histocytes with abundant granular cytoplasm bear some resemblance to the cells of an oncocytic tumor (hematoxylin and eosin [H & E] stain).

1420
Q

FNA rénale

A

Macrophages Macrophages are a nonspecific finding (Papanicolaou stain).

1421
Q

FNA rénale

A

Anneaux de Liesegang These sharply defined round crystal-like structures have a double-layered outer wall and radial striations. Often seen in association with benign renal cysts, they are a nonspecific finding (A, Papanicolaou stain; B, hematoxylin and eosin stain).

1422
Q

FNA d’une masse rénale

A

Carcinome à cellules claires (A) The tumor cells are in a broad sheet and have abundant clear and granular cytoplasm (Papanicolaou stain).

1423
Q

FNA d’une masse rénale

A

Carcinome à cellules claires (B) Fine cytoplasmic vacuoles and pink, strand-like material (arrow) are well seen with the Romanowsky stain.

1424
Q

FNA d’une masse rénale

A

Carcinome à cellules claires (C) Nuclei are often eccentrically placed (Papanicolaou stain).

1425
Q

FNA d’une masse rénale

A

Carcinome à cellules claires (D) The cytoplasm of this grade 4 tumor is more opaque, the cells are more dyshesive, and nucleoli are prominent (Romanowsky stain).

1426
Q

FNA d’une masse rénale

A

Carcinome à cellules claires (A) Sarcomatoid changes. The malignant cells are haphazardly arranged and very elongated

1427
Q

FNA d’une masse rénale

A

Carcinome à cellules claires (B) Rhabdoid changes. The cells are large, with an eccentrically placed nucleus and a conspicuous focus of cytoplasmic condensation. Sarcomatoid and rhabdoid changes indicate a worse prognosis (Romanowsky stain).

1428
Q

FNA d’une masse rénale

A

Carcinome rénal papillaire (A) Complex papillary architecture is apparent on smears. Note the large sphere (arrow), a characteristic finding. Foamy macrophages are scattered in the background (Papanicolaou stain). (B) Foamy macrophages stuff the fibrovascular cores of the papillae and are often best seen on cell block sections (hematoxylin and eosin stain). (C) Note how round and monomorphous the nuclei are in a low-grade papillary renal cell carcinoma (Papanicolaou stain). (D) Cytoplasmic hemosiderin is a common finding (Romanowsky stain).

1429
Q

FNA d’une masse rénale

A

Carcinome papillaire rénal oncocytaire (A) The tumor cells form complex papillary structures but are also dispersed as isolated cells (Romanowsky stain). (B) Cell block sections reveal papillae lined by a single layer of oncocytic cells (hematoxylin and eosin stain). The lesional cells were strongly positive for GATA3 (not shown).

1430
Q

FNA d’une masse rénale

A

Carcinome rénal chromophobe (A) The tumor cells have a koilocytoid appearance, with abundant cytoplasm, prominent cell borders, binucleation, and dark nuclei that vary in size. Nucleoli are hard to see (Papanicolaou stain). (B) The fluffy, irregularly vacuolated cytoplasm has a moth-eaten appearance (Romanowsky stain).

1431
Q

FNA d’une masse rénale

A

Carcinome urothélial Cells with long unipolar cytoplasmic extensions and flared ends are called cercariform cells (Papanicolaou stain).

1432
Q

FNA d’une masse surrénalienne

A

Adénome cortico-surrénalien (A) Nuclei are stripped of cytoplasm and float in a sea of frothy cytoplasmic remnants (Papanicolaou stain).

1433
Q

FNA d’une masse surrénalienne

A

Adénome corticosurrénalien (B) Adjacent nuclei occasionally show molding (arrow) and thus mimic small cell carcinoma (Romanoswky stain).

1434
Q

FNA d’une masse surrénalienne

A

Adénome corticosurrénalien (C) Intact cells have indistinct cell borders (Papanicolaou stain).

1435
Q

FNA d’une masse surrénalienne

A

Phéochromocytome (A) In some cases there is marked anisonucleosis (Romanowsky stain).

1436
Q

FNA d’une masse surrénalienne

A

Phéochromocytome (B) Intranuclear cytoplasmic pseudoinclusions, a characteristic but nonspecific feature, are sometimes seen (Papanicolaou stain).

1437
Q

FNA d’un kyste ovarien

A

Kyste endométriosique (A) Cytologic preparations often show only macrophages with abundant intracytoplasmic hemosiderin (Papanicolaou stain).

1438
Q

FNA d’un kyste ovarien

A

Cystadénome séreux

1439
Q

FNA d’un kyste ovarien

A

Cystadénome mucineux Admixed with macrophages are fragments of benign mucinous epithelium resembling gastric foveolar epithelium (Papanicolaou stain).

1440
Q

FNA d’un kyste ovarien

A

Cystadénome mucineux Some mucinous cystadenomas contain intestinal-type goblet cells (Papanicolaou stain).

1441
Q

FNA d’un kyste ovarien

A

Tumeur séreuse borderline (A) The cells are arranged in a crowded sheet. There is mild to moderate atypia. (B) In this tight spherical aggregate, some cells have large cytoplasmic vacuoles. (C) Psammoma bodies are a common finding (Papanicolaou stain).

1442
Q

FNA d’un kyste ovarien

A

Carcinome séreux de haut-grade The malignant cells often have large, round, and pleomorphic nuclei, and nucleoli are prominent (Papanicolaou stain).

1443
Q

FNA d’un kyste ovarien

A

Carcinome mucineux (A) Some sheets of mucinous cells show only mild atypia (compare with Figs. 16.9, 16.10). (B) Other cells are markedly atypical, with little if any mucinous differentiation (Papanicolaou stain).

1444
Q

FNA d’une tumeur ovarienne

A

SCNEC de l’ovaire hypercalcémiant This tumor resembles the small cell carcinoma of neuroendocrine type of the lung. (A) Wright–Giemsa-stained smear

1445
Q

Lésion des tissus mous

A

Lipome Benign lipomas have occasional capillaries, but they are not as numerous as in hibernomas (Papanicolaou stain).

1446
Q

Lésion des tissus mous

A

Hibernome (A) Delicate capillaries (arrows) can be numerous and are closely associated with tumor cells that have distinct granular and multivacuolated cytoplasm (Papanicolaou stain). (B) Lipoblast-like cells are present, but the nuclei are small and lack atypia (Papanicolaou stain).

1447
Q

FNA d’une lésion du rétropéritoine

A

Liposarcome bien différencié The much-touted variation in adipocyte size can be subtle and easily overlooked (compare with Fig. 17.1) (Papanicolaou stain). The enlarged, hyperchromatic nuclei of lipoblasts are scalloped because of multiple impinging cytoplasmic lipid droplets (Papanicolaou stain). Atypical nuclei in deep-seated fatty lesions denote malignancy, even when classic lipoblasts are not readily identified (Papanicolaou stain).

1448
Q

FNA d’une lésion des tissus mous

A

Liposarcome pléomorphe

1449
Q

FNA d’une lésion intra-musculaire

A

Myxome intra-musculaire (A) Many Intramuscular myxomas are paucicellular, comprised mostly of myxoid matrix. Rare macrophages and bland spindle cells are present (Papanicolaou stain). (B) Cellularity is more pronounced with a cellular myxoma. Stubby vessels can be seen, especially with the cellular myxoma (Romanowsky stain).

1450
Q

FNA d’une lésion des tissus mous

A

Myxofibrosarcome (A) The vascular component, when present, manifests itself as short curvilinear segments of thick-walled vessels with adherent matrix and pleomorphic tumor cells (Papanicolaou stain). (B) Pseudolipoblasts (arrow) contain acid mucins rather than lipid (Romanowsky stain).

1451
Q

Tissus mous

A

Liposarcome myxoïde (A) Discrete tissue fragments contain myxoid matrix, vessels, and tumor cells (Romanowsky stain). (B) Delicate branching “chicken-wire” capillaries are easily obtained by aspiration and are seen in abundance on smears (Papanicolaou stain). (C) The lipoblasts in myxoid liposarcomas resemble signet-ring cells and histiocytes and are often associated with the vessels (Romanowsky stain). FUS-DDIT3

1452
Q

Tissus mous

A

Liposarcome myxoïde (A) Discrete tissue fragments contain myxoid matrix, vessels, and tumor cells (Romanowsky stain). (B) Delicate branching “chicken-wire” capillaries are easily obtained by aspiration and are seen in abundance on smears (Papanicolaou stain). (C) The lipoblasts in myxoid liposarcomas resemble signet-ring cells and histiocytes and are often associated with the vessels (Romanowsky stain). FUS-DDIT3

1453
Q

Tissus mous

A

Chondrosarcome myxoïde extra-squelettique (A) The extraskeletal myxoid chondrosarcoma has a distinctive fibrillary chondromyxoid matrix (Romanowsky stain). (B) Long cytoplasmic extensions link one cell to another, often conferring a lacelike appearance (Papanicolaou stain).

1454
Q

Tissus mous

A

Léiomyosarcome (A) Spindle cells are packed in cohesive tissue fragments with well-circumscribed, rigid edges (Romanowsky stain). (B) Nuclei are hyperchromatic, with finely textured chromatin in lower-grade tumors and more coarsely clumped chromatin in the higher-grade neoplasms (Papanicolaou stain).

1455
Q

Tissus mous

A

Schwannome (A) Smears often contain thick tissue fragments that appear densely cellular, erroneously suggesting a sarcoma (Papanicolaou stain). (B) The neoplastic cells have abundant filamentous cytoplasm and an oval, curved, or wavy nucleus (Romanowsky stain).

1456
Q

Tissus mous

A

Sarcome synovial There is a distinctive pattern of dispersed cells alternating with cohesive cell clusters (Papanicolaou stain). Synovial Sarcoma, Biphasic. Epithelial differentiation is recognized as only a vague palisading of nuclei along the edges of tissue fragments or as clusters of more epithelioid-appearing cells among the spindle cells (Papanicolaou stain). Synovial Sarcoma, Monophasic. (A) The oval to round nuclei are remarkably uniform, although rare elongated, blunt-ended, and bent forms are seen (Papanicolaou stain).

1457
Q

Tissus mous

A

Tumeur fibreuse solitaire (A) Cellular fragments with a meshwork of irregular fascicles alternate with isolated spindle-shaped cells (Papanicolaou stain). (B) High magnification reveals collagen fibers coursing through the tumor (Papanicolaou stain). (C) Cell block preparations are very helpful for capturing the characteristic bland, monomorphic spindle-shaped cells insinuated between collagen bundles (hematoxylin and eosin stain).

1458
Q

Tissus mous

Petite lésion

A

Fasciite nodule

(A) Smears can be cellular, with numerous myofibroblasts embedded in a myxoid matrix (Romanowsky stain). (B) Dispersed, polymorphic myofibroblasts are characteristic (Romanowsky stain). (C) The myxoid matrix is less conspicuous with the Papanicolaou stain. (D) Mitoses are not unusual (Romanowsky stain).

1459
Q

Tissus mous, gaine tendineuse

A

Tumeur à cellules géantes ténosynoviales (A) Mononuclear histiocytoid cells are arranged in clusters. There is prominent intracytoplasmic hemosiderin, imparting a speckled, ladybug-like appearance to the cells (Papanicolaou stain). (B) Multinucleated giant cells are a prominent feature (Romanowsky stain).

1460
Q

Tissus mous

A

Goutte (A) The sample is comprised of innumerable needle-shaped crystals in a background of granular debris (Papanicolaou stain). (B) Examination under polarized light demonstrates the crystals more clearly.

1461
Q

Tissus mous

A

Tumeur à cellules granulaires Small nuclei within abundant granular cytoplasm result in a low nuclear-to-cytoplasmic ratio (Papanicolaou stain).

1462
Q

Tissus mous

A

Tumeur à cellules granulaires Small nuclei within abundant granular cytoplasm result in a low nuclear-to-cytoplasmic ratio (Papanicolaou stain).

1463
Q

Tissus mous

A

Élastofibrome Sharply defined, hypocellular fragments contain rare bland fibroblasts with curvilinear, rodlike elastic fibers (hematoxylin and eosin stain).

1464
Q

Tissus mous

A

Amyloïdome Fragments of waxy, amorphous material have sharply defined edges with embedded fibroblasts and capillaries (Papanicolaou stain).

1465
Q

Os

A

Gauche : enchondrome Fragments of mature cartilage with small, uniform chondrocytes in lacunae are well appreciated with air-dried, Romanowsky-stained smears. Droite : chondrosarcome G1 B) Extracellular chondroid material from an atypical cartilaginous tumor/grade 1 chondrosarcoma is indistinguishable from that seen in enchondromas (Romanowsky stain).

1466
Q

Os

A

En haut : chondrosarcome G2-3 (A) Grade 2 and 3 chondrosarcomas yield cellular smears and prominent myxoid matrix (Romanowsky stain). (B) Cytologic atypia is apparent. The chondromyxoid matrix is paler and less conspicuous with alcohol-fixed smears (Papanicolaou stain). En bas : chondrosarcome dédifférencié Dedifferentiated chondrosarcoma has a sarcomatous component that is indistinguishable from a spindle-cell/pleomorphic sarcoma. The scant chondromyxoid matrix seen here is relatively nonspecific but might spur a search for better differentiated areas (Romanowsky stain).

1467
Q

Os

A

En haut : chondrosarcome G2-3 (A) Grade 2 and 3 chondrosarcomas yield cellular smears and prominent myxoid matrix (Romanowsky stain). (B) Cytologic atypia is apparent. The chondromyxoid matrix is paler and less conspicuous with alcohol-fixed smears (Papanicolaou stain). En bas : chondrosarcome dédifférencié Dedifferentiated chondrosarcoma has a sarcomatous component that is indistinguishable from a spindle-cell/pleomorphic sarcoma. The scant chondromyxoid matrix seen here is relatively nonspecific but might spur a search for better differentiated areas (Romanowsky stain).

1468
Q

Os

A

Tumeur à cellules géantes de l’os (B) Large clusters of mononuclear stromal cells are admixed with numerous osteoclast-like giant cells, many arranged at the periphery of the clusters of stromal cells (arrows) (Romanowsky stain). (C) The giant cells are distributed evenly within the stromal cells on cell block sections (hematoxylin and eosin stain).

1469
Q

Os

A

Chordome Clusters of large, round to cuboidal “physalliferous” cells are embedded in a rich myxoid matrix (Romanowsky stain). Tumors cells show strong nuclear staining for brachyury (inset).

1470
Q

Os

A

Plasmacytome (A) A Dispersed population of recognizably plasmacytoid cells is common. Binucleation is often seen (arrows) (Romanowsky stain).

1471
Q

Os

A

Histiocytose à cellules de Langerhans (B) Neoplastic Langerhans cells can be epithelioid or elongated (“dendritic”) in appearance. Many nuclei are markedly folded and grooved (arrows).

1472
Q

LCR

A

LLA

1473
Q

Thyroïde

A

Figure 10-25A. Primary Thyroid Lymphomas. (A) Diffuse large B-cell lymphoma. The large dispersed cells can mimic an anaplastic carcinoma. Lymphoglandular bodies are helpful and point to a lymphoid rather than epithelial neoplasm (Romanowsky stain).

1474
Q

Poumon

A

Paracoccidioidomycose

1475
Q

Poumon

A

Nocardia

1476
Q

LCR

A

Éosinophiles

Le LCR est la pire chose (PE)

1477
Q

LCR

A

DLBCL

1478
Q

LCR

A

Cryptocoque

1479
Q

Poumon

A

Hamartome pulmonaire

1480
Q

Thyroïde

A

Figure 10-09B. Chronic Lymphocytic (Hashimoto) Thyroiditis. (C) Dendritic-lymphocytic aggregates are often present. Dendritic cells have a large vesicular nucleus and conspicuous nucleolus (arrow) (Papanicolaou stain).

1481
Q

Thyroïde

A

Figure 10-09B. Chronic Lymphocytic (Hashimoto) Thyroiditis. (B) The heterogeneity of the lymphoid cells is better appreciated with air-dried preparations (Romanowsky stain).

1482
Q

Thyroïde

A

Carcinome médullaire

Diff-Quik : cellules rondes et régulières avec amyloÏde.

1483
Q

Thyroïde

A

Carcinome médullaire

Pap: Cellules isolées plasmacytoïdes ou polygonales avec chromatine sel et poivre, petits/pas nucléoles. Flèche = amyloïde

1484
Q

Poumon

A

Carcinome NE à grandes cellules