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Path II > Unit 1 > Flashcards

Unit 1 Flashcards

1
Q

Nasopalatine duct cyst / Incisive canal cyst

A

-most common non-odontogenic cyst of oral cavity
-VITAL TOOTH
-only seen midline b/w 8 & 9
-well defined unilocular RL

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2
Q

Median palatine cyst

A

-well defined unilocular RL
-see on palate in midline, more posteriorly

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3
Q

Periapical cyst / Radicular cyst

A

-apex of NON VITAL TOOTH
-well defined unilocular RL

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4
Q

Residual cyst

A

-well defined unilocular RL
-seen in apex region of empty alveolar socket
-post EXT

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5
Q

Buccal bifurcation cyst / Paradental cyst

A

-seen @ buccal bifurcation
-mandibular molars w/ cervical enamel projection
-well defined unilocular RL
-VITAL TOOTH

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6
Q

Dentigerous cyst

A

-most common odontogenic cyst
-enlarged follicular space > 4mm
-well defined pericoronal unilocular RL
-unerupted or impacted tooth

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7
Q

Unicystic ameloblastoma

A

-well defined pericoronal RL
-ameloblastic transformation

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8
Q

Eruption cyst

A

soft tissue cyst, swollen gums

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9
Q

Primordial cyst

A

-cyst develops in place of tooth
-tooth must be congenitally missing
-well defined unilocular RL where missing tooth should be

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10
Q

Orthokeratinizing odontogenic cyst

A

-filled with orthokeratin
-well defined unilocular RL
-pericoronal?

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11
Q

Calcifying odontogenic cyst / Gorlin cyst

A

-anterior jaws of adults
-well defined radiolucency, possible radiopaque calcifications
-ghost cells on histo

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12
Q

Glandular odontogenic cyst

A

-salivary gland features
-anterior mandible, adults
-well defined multilocular RL
-crosses midline

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13
Q

OKC

A

-posterior jaws of teens, young adults
-well defined unilocular or multilocular RL
-aggressive, high recurrence
-wavy parakeratin in lumen

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14
Q

Nevoid basal cell carcinoma

A

-bifid ribs
-multiple OKCs seen early
-skin tumors
-neoplasms
-palmar pitting

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15
Q

Lateral periodontal cyst

A

-VITAL TOOTH
-mandibular premolar, lateral aspect
-well defined unilocular RL on lateral aspect of mandibular premolar
-adult males

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16
Q

Botryoid odontogenic cyst

A

-same as LPC but grape like
-well defined multilocular RL on lateral aspect of mandibular premolar

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17
Q

Gingival cyst of adult

A

-VITAL TOOTH
-soft tissue cyst, no radiograph
-common near mandibular premolar, lateral aspect

18
Q

Dental lamina cyst of newborn

A

-multiple soft tissue cysts filled with keratin
-on alveolar ridge

19
Q

Palatal cysts of newborn

A

Epsteins pearls: seen in midline
Bohn’s nodules: on palate, not in midline
-both are non odontogenic cysts

20
Q

Nasolabial cyst / Nasoalveolar cyst / Klestadt cyst

A

-soft tissue cyst
-always upper lip lateral to midline
-raises ala of nose
-adult females

21
Q

Oral lymphoepithelial cyst

A

-soft tissue cyst
-young adults
-seen in locations w/ lots of lymphoid tissue
-germinal centers in CT, resemble LN
-appears yellowing

22
Q

Cervical lymphoepithelial cyst / Branchial cleft cyst

A

-soft tissue cyst
-upper lateral neck anterior to SCM
-young adults
-histo identical to OLC

23
Q

Thyroglossal duct cyst

A

-sot tissue cyst
-midline of neck
-moves when Pt swallows
-thyroid follicles seen on histo

24
Q

Traumatic bone cyst

A

-pseudocyst
-mandible
-scalloped border
-VITAL TEETH
-well defined unilocular RL w/ scalloped border

25
Q

Aneurysmal bone cyst

A

-pseudocyst
-rapid growth, painful
-young adults
-well defined multilocular RL
-blood soaked sponge in cavity
-lots of MNGCs and RBCs

26
Q

Static bone cyst / Stafne defect

A

-pseudocyst
-pathognomonic
-well defined RL ALWAYS BELOW MANDIBULAR CANAL
-SM gland trapped in cyst

27
Q

Ameloblastoma

A

-epithelial tumor
-posterior mandible of adults
-recurrence common
-does not form hard or soft tissue
-unilocular or multilocular RL, pericoronal, may cross midline
-resembles enamel organ (developing tooth)

28
Q

Follicular ameloblastoma

A

-easily visible stellate reticulum
-reverse polarity of cells seen

29
Q

Plexiform ameloblastoma

A

???

30
Q

Desmoplastic ameloblastoma

A

-anterior jaws, both
-ILL DEFINED RADIOPACITY
-dense collagen stroma = radiopaque

31
Q

Peripheral ameloblastoma

A

-gum bump
-no radiographic presentation

32
Q

Central ameloblastoma

A

-in bone
-well defined uni or multilocular RL, pericoronal

33
Q

Unicystic ameloblastoma

A

-well defined pericoronal unilocular RL
-posterior mandible
-Vickers Gorlin change:
–nuclear hyperchromatism
–nuclear palisading
–reverse polarity of basal nuclei
–subnuclear vacuolation

34
Q

Adenomatodi odontogenic tumor AOT

A

-epithelial tumor
-mixed density due to calcifications
-maxillary anterior region
-teen females
-well defined unilocular RL w/ mixed density radiopacities
-diverges teeth
-only tumor w/ PSEUDODUCTS
–1row of cells instead of 2 on duct

35
Q

Calcifying epithelial odontogenic tumor CEOT / Pinborg tumor

A

-epithelial tumor
-adults
-posterior mandible, ramus
-well defined unilocular or multilocular RL w/ possible calcifications
-histo shows pink polygonal polyhedral cells
-contains amyloid = pink cotton candy
-concentric Leisegang ring calcifications

36
Q

Odontogenic myxoma

A

-mesenchymal tumor
-young adults
-mandible
-uni or multilocular RL
-crosses midline
-recurrence common, aggressive
-resembles dental papilla

37
Q

Odontogenic fibroma

A

-mesenchymal tumor
-central or peripheral
-adult middle aged females
-well defined unilocular or multilocular RL
-anterior maxilla and posterior mandible equally
-may see radiopaque flecks

38
Q

Cementoblastoma

A

-mesenchymal tumor
-young adults
-mandibular 1st molar
-painful, expansion, root resorption
-well defined radiopaque mass attached to tooth as 1 unit
-VITAL TEETH

39
Q

Odontoma

A

-mixed tumor
-teens
-well defined
-complex:
–large radiopaque mass
–no organization
-compound:
–mass of mini teeth
–organized dental layers

40
Q

Ameloblastic fibroma

A

-mixed tumor
-kiddie tumor
-posterior mandible
-well defined pericoronal RL
-impacted tooth
-resembles dental papilla on histo

41
Q

Ameloblastic fibro-odontoma

A

-mixed tumor
-kiddie tumor
-posterior mandible
-unerupted tooth
-well defined unilocular or multilocular mixed density lesion
-presence of enamel and dentin on histo

Path II (1 decks)

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