H&E Flashcards

1
Q

H&E caracteristique

A

Colo de routine
Mise en evidence des element tissulaire en general
2 solution colorant
Progresif ou regressive

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2
Q

Pre colo:

A

Deparafinage et hydratation

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3
Q

Post colo

A

Deshydratation et eclaircissement

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4
Q

Etape avant colo

A

Xylene 1
Xylene 2
Alcool 100%
Alcool 95%
Alcool 70%
Eau

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5
Q

Etape post colo

A

Alcool 100%
Alcool 100%
Xylene 1
Xylene 2
Montage

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6
Q

Etape colo H&E

A

Hemateine de harris
Eau
Alcool acide 1%
Eau
Carbonate lithium 1%
Eau
Alcool 95%
Eosine
Alcool 95%
- desydratation/eclaircissement

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7
Q

Resulta colo H&E

A

Noyau-bleu/violet
Basophile-pourpre
Cytoplasme-rouge
Muscle-rose foncer
Erythrocyte-rouge cerise
Collagene-rose pale

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8
Q

Ques qui cause precipiter d’hematoxyline et solution

A

Hematoxyline non filtrer
Ajout acide acetique a certaine solution

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9
Q

Deparaffinage incomplet cause

A

Xylene saturee de parafine
Eau dans tissu
Sechage incomplet
Sejour trop court xylene
Xylene contaminer

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10
Q

Deparaffinage incomplet solution

A

Sechage inadequat) alcool absolu pour retirer l’eau et xylene pour retirr parafine
Si colo) decolo,traiter et recolorer

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11
Q

Manque detail nucleaire cause

A

Fixation incomplete—> cause principale
Chaleur excessive dans circulation ou sechage

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12
Q

Noyau pale cause

A

Sejour trop court dans hematoxyline
Solution d’hematoxyline expiree
Trop de differenciation de l’hematoxyline

Colo pale daans section os resulta decalcification

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13
Q

Noyau trop foncer cause

A

Sejour trop long dans hematoxylin
Section trop epaisse >4 micron
Pas asser differencier

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14
Q

Bulle dans noyau cause

A

Formal non tamponné
Fixation trop court
Sechage inadequat

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15
Q

Noyau rouge ou rouille

A

Hematoxyline expirer
Bleuissement des noyau inadequat

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16
Q

Cytoplasme pale cause

A

PH eosine >5
Contamination par agent de bleuissement
Eosine non acidifier
Section trop mince
Sejour trop long dans alcool diluer suivant eosine

17
Q

Colo cytoplasmique foncer cause

A

Se produit surtouavec eosine-phoxine
Eosine trop concentrer
Temps eosine
Differentiation eosine trop cour
Epaiseur des coupe

18
Q

Eosine pas bien differencier cause

A

Fixation inadequat
Deshydratation/eclaircissement inadequat
Par bon pH eosine

19
Q

H&E iregulier cause

A

Contenant trop petit
Pas asser de solution
Epasseur variable
Contamination parafine

20
Q

Peu contraste noyau/cytoplasme cause/solution

A

Noyau pale/foncer
Cytoplasme pale/foncer
Solution:resoudre probleme