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12 Cards in this Set
- Front
- Back
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Dentigerous Cyst
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" Follicular Cyst"
Separation of follicle around the crown of an UNERUPTED IMPACTED TOOTH MOST COMMON DEVELOPMENTAL ODONTOGENIC CYST UNILOCULAR LUCENCY never MULTILOCULAR or shows calcifications ROOT RESORPTION OF ADJACENT TEETH POSSIBLE multiple IMPACTED TEETH D/D 1. UNILOCULAR AMELOBLASTOMA 2. OKC 3 COMPLICATIONS WITH ODONTOGENIC CYSTS 1. BECOMES AMELOBLASTOMA 2. BECOMES MUCOEPIDERMOID CARCINOMA 3. MAY TURN TO SCC |
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Eruption Cyst
(eruption hematoma) |
Blood in cystic fluid - purple or brown color
Common in Children Soft tissue analogue of dentigerous cyst |
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Odontogenic Keratocyst
OKC |
Developmental Odontogenic Cyst
Arises from cell rests of DENTAL LAMINA most significant CLINICAL CYST GORLIN GOLTZ SYNDROME- multiple OKC's suspect NEVOID BASAL CELL CARCINOMA well defined radiolucency MULTILOCULAR unerupted tooth involvement grows in ANTERIOR POSTERIOR DIRECTION histology- thin friable wall with picket fence like palliating High recurrence because: 1. presence of thin friable lining 2. cystlets |
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OKC
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D/D- multilocular
1. ameloblastoma 2. central giant cell granuloma 3. cherbuism 4. odontogenic myxoma DD- unilocular 1. gorlin cyst 2. denigerous cyst 3.lateral periodontal cyst |
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OKC: Gorlin Goltz Syndrome
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Nevoid Basal Cell Carcinoma Syndrome
Autosomal Dominant 1.MULTIPLE basal cell carcinomas of the skin 2.MULTIPLE OKC's -MOST CONSTANT FEATURE 3. Rib & vertebral anomalies 4. intracranial calcifications PTCH Gene |
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Lateral Periodontal Cyst
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nasopalatine duct cyst- most common non odontogenic cyst
RARE developmental cyst of JAW asymptomatic well circumscribed LOWER CANINE PREMOLAR AREA- radiolucency bt mandibular canine and 1st premolar MULTILOCULAR - DD= OKC & Ameloblastoma |
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Gingival Cyst
NEWBORN |
arises from DENTAL LAMINA REMNANTS
EPSTEIN pearls, Bohns Nodules dissapears spontaneously |
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Gingival Cyst
ADULT |
LOWER CANINE-premolar area
soft tissue counterpart of LATERAL PERIODONTAL CYST- from dental lamina rests superficial CUPPING OUT |
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Calcifying Odontogenic Cyst
GORLIN CYST |
NON neoplastic
incisor canine area INTRAOSSEOUS LESION mostly associated with odontomas UNILOCULAR WELL DEFINED LUCENCY irregular calcification. OPAQUE STRUCTURES within lesion 1/3 associated with unerupted tooth GHOST CELLS- altered cells with LOSS OF NUCLEI in epithelial cells but preservation of basic cell outline DD 1. OKC 2. Dentigerous cyst 3. Ameloblastoma 4. Calcifying Epithelial Odontogenic Tumor |
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Calcifying Odontogenic Cyst
SOLID VARIANT |
NOT cystic
"dentinogenic ghost cell tumor" regarded as a NEOPLASM- DESTRUCTIVE |
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Carcinoma Arising in Odontogenic Cysts
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older patients
PAIN AND SWELLING - WITH PARESTHESIA xray= IREEGULAR RAGGED MARGINS OF A RADIOLUCENCY " TEETH FLOATING IN AIR" |
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Glandular Odontogenic Cyst
Sialo Odontogenic Cyst |
Middle Age Adult
Mandible Frequently crosses midline anteriorly SMALL ASYMPTOMATIC SCLEROTIC BORDER cuboidal/mucus cells multilocular lesions recur |
