Orasprint 5 - crammo Flashcards
4 types of Ectodermal Odontogenic Tumors:
Ameloblastoma
CEOT - Calcifying Epithelial Odontogenic Tumor
AOT - Adenomatoid Odotogenic Tumor
SOT - Squamous Odontogenic Tumor
4 types of Mesodermal (CT) Odontogenic Tumors:
Central Odontogenic fibroma
Peripheral Odontogenic fibroma
Odontogenic myxoma
Cementum Lesions (3)
3 types of Mixed Odontogenic Tumors:
epithelial and CT
Ameloblastic fibroma
Ameloblastic fibro-odontoma
Odontoma
Ameloblastoma, common what age?
found where (%/location)
The most…
middle age (but found all ages)
75% posterior Mn
Painless
Ameloblastoma, Radiographic location: _____, always _____
Classically see what 3 things on Radiograph:
Pathology: Epithelial islands and cords where peripheral cells show ______ and ________
Tumor invades _______ but tends to expand ______
Pericoronal, Radiolucent
multilocular, moved teeth, root resorption
pallisading, reverse nuclear polarity
medullary bone, cortex
Tx, Ameloblastoma:
% recur w/ aggressive curettage:
Surgical (aggressive curettage or resection)
50%
4 variants of Ameloblastoma: Which is less aggressive?
which is a solitary confined cyst?
Which is “benign” but metastasizes?
which is malignant, aggressive, and metastasizes?
Peripheral extraosseous
Unicystic
Malignant ameloblastoma
Ameloblastic carcinoma
Unicystic Ameloblastoma is less aggressive and recurs ____% with enucleation
10-25%
You can definitively diagnose Ameloblastoma variants on incisional biopsy
False
CEOT (Calcifying Epithelial Odontogenic Tumor) aka…
Found all ages, but more in what location?
Radiographic:
Often associated with _______
Pindborg Tumor
midbody Mn
driven snow (lucent/mixed lucent/opaque)
unerupted teeth
CEOT pathology: islands and sheets of…
Tumor cells function and produce a protein matrix called…
This protein matrix may…
This stains with what?
pleomorphic epithelial cells
ODAM (odontogenic ameloblast-like protein)
calcify
amyloid stains
CEOT Tx:
Surgical
AOT…
Most prevalent at what age?
what population?
3/4 found where?
Usually under what?
symptoms?
Adenomatoid Odontogenic Tumor
1-3 decades, mostly teens
Female
Anterior Mn
unerupted teeth
asymptomatic
AOT, radiographically is…
may contain…
pericoronal lucency
flecks of opacity
Adenomatoid Odontogenic Tumor (AOT) pathologically is ________, with swirls of epithelial cells containing ________ or duct-like spaces lined by _______ cells.
Encapsulated
Rosettes
cuboidal/columnar
AOT Tx:
Enucleation
SOT…
Radiographically seen as…
Pathology, contains _______ of well-differentiated squamous epithelium with the peripheral cells _____
Tx:
Squamous Odontogenic Tumor
Lucency around Roots
islands, flattened
Curettage
Central Odontogenic Fibroma, radiographic it is…
WHO type (pathology), the stroma is _______ but may be more mature variable amounts of ________ and _____
Tx:
lucent or mixed lucent/opaque
collagenous, odontogenic epithelium, calcifications
Surgical removal
Peripheral Odontogenic fibroma is a reactive gingival lesion of what origin?
increases what age?
Where?
pathology is cellular fibrous CT with ______
PDL
young
anterior gingiva
calcifications (bone, cementum, dystrophic)
“Odontogenic” myxoma, occurs at all ages by increases when?
presents?
Radiograph is a lucency containing what?
young
asymptomatic
residual opaque trabeculae
“Odontogenic” myxoma pathology. This is a _____ tumor with scattered plump _______ cells
Has delicate ______ and abundant _______
Often mistaken for….
hypocellular, fibroblastic
collagen fibrils, ground substance (glycosaminoglycans)
normal anatomy
“Odontogenic” myxoma Tx:
Block resection
What are the 3 Cementum Lesions?
Central cemento-ossifying fibroma
Benign cementoblastoma (true cementoma)
Gigantiform cementoma
Central cemento-ossifying fibroma is a neoplasm of _____ origin.
Radiographically it is well circumscribed, and associated with what?
Lucency?
fibroblastic stoma, trabeculae, globules of acellular cemntum
Usually…
Tx:
PDL
tooth roots
lucent/mixed/opaque
fibroma, ossifying, cementifying (or both = cemento-issifying)
Encapsulated
Enucleation