Osd5: Odontogenic Cysts

Front 1

Dentigerous cyst(R/H)
-derived from?
-DDx
-radio
-histo

Back 1

- reduce enamel epithelium
-OKC, unicystic ameloblastoma
-unilocular,, lucent well defined-sclerotic, expansile/displace/resrob, CEJ

-lining: non-keratinzed, multipotent
-wall: odontogenic rest, primitive myxoid ct

Front 2

Eruption cyst(C)
-defintiinon

Back 2

-ST version of DC
-over deciduous or permanent tooth

Front 3

buccal bifurcation(R/H)
-radio
-histo

Back 3

-uni, lucency, well cicrcumscribed, buccal bifurcation area
-apical periodontal cyst

Front 4

paradental cyst(R/H)
-where?

Back 4

-form of DC
-D/B mandibular 3rd molar

Front 5

apical periodontal cyst(R/H)
-assoicated with?
-derived from?
-radio?
-histo?

Back 5

-rest of malassez
-unilocular, lucency, well-defined, expansion/thinning, PDL part of lesionperiapial/ip, large=IRR borders

-lining: inflammed, multipotent, exocytosis, spongiosis

-CT: granulation, inflammation, chol. clefts, dysplastic calcification

Front 6

Residual Cysts(R/H)
-radio?
-histo?

Back 6

uni, lucent, well defined, previous extraction site

-APC not as inflammed

Front 7

OKC(H)
-derived from?
-syndrome?
-radio
-histo

Back 7

-rest of dental lamina
-multiple=nevoid basal cell carcinoma

-uni/multi, lucent, well circumscribed-corticated?, with a tail

-thin/friable cyst wall
-epithelial budding/daughter cysts
-palisaded hyperchromatic basal cell layer
-corrugated parakeratin
-6-10 epi thick
-2ndary inflammation

Front 8

orthookc(R/H)
-radio
-histo

Back 8

-unilocular luceny
-orthokeratin, granular cell, not palisaded less hyperchromatic

Front 9

lat per cyst(R/H)
-conterpart?
-derived?
-polycystic?
-radio
-histo

Back 9

-gingival cyst of adult
-rest of lamina
-botryoid

-uni, lucent, well-circumscribed-corticated?, lateral to roots of vital teeth
-botryoid: uni/multi

-flat squamous cells, focal nodular thickneings(epi plaques), whirl pattern

Front 10

Gingival Cyst of Newborn(Cl)
-similar to?
-clinical?
-histo?

Back 10

-ging. cyst newborn, palatal cyst newbord
-multiple white papulaes
-keratin filled cyst, parakeratin, rest of dental lamina

Front 11

Calcifying Odontogenic Cyst(Gorlin)(H)
-derived from?
-radio?
-histo?

Back 11

-rest of odontogenic epi

-uni, lucent+-opacity, well defined-corticated? , destructive/+other pathologies(odontoma)

-ghost cell keratinziation
-coag necrosis-->no nucleus-->dystrophic calcification-->in CT-->foregin-body resposne(MNGC)
-loose stellate/spinle cells(stellate reticulum)
-columnar cell(ameloblasts)

Front 12

Odontogenic glandular cyst
-derived from?
-radio?
-histo?

Back 12

-rest of dental lamina

-uni/multi, well defined, radiolucency

-glandular differentiation: SSE has columnar cells with cilia, micro cysts/ducts, mucus clusters

Front 13

Carcinoma In Odontogenic Cysts
-process?
-looks like?

Back 13

-malignant transformation of odontogenic cyst
-well differd SCC