Odontogenic tumors Flashcards
Name the Ectodermal (Epithelial) odontogenic tumors
Ameloblastoma
Calcifying Epithelial Odontogenic Tumor (pindborg tumor or CEOT)
Adenomatoid Odontogenic Tumor (AOT)
Squamous Odontogenic Tumor (SOT)
Clinical aspects of Ameloblastoma
Affects all ages (»_space; middle age)
Most are painless
+- cortical expansion
Where are ameloblastomas most common
75% Mandible (posterior)
Describe the radiographic aspects of ameloblastomas
May be pericoronal
Always radiolucent
Fairly well circumscribed
Classically multilocular, move teeth, root resorption
Treatment of ameloblastomas
Surgical Aggressive curettage (50% recur) vs resection
Name the 4 variants of ameloblastomas
- Peripheral (extrosseous) - less aggressive
- Unicystic - cyst in which it is confined
- Malignant ameloblastoma - benign - metastasizes
- Ameloblastic carcinoma - histologic features of malignancy, aggressive, metastasizes.
Describe how to diagnose a unicystic ameloblastoma
Cannot definitively diagnose on incisional biopsy.
Clinical aspects of Pindborg Tumors. Where is it found most commonly?
Affects all ages
|»_space; Mandible, midbody
Radiographic aspects of Pindborg Tumors
Lucent to mixed lucent/opaque (“driven snow”)
Often associated with unerupted teeth
Treatment of Pindborg Tumors
Surgical
Clinical aspects of Adenomatoid Odontogenic Tumors (AOT)
- Affects mostly individuals in 1-3 decades (Teens)
- Affects Females more often
- More common in unerupted teeth
Where are Adenomatoid Odontogenic Tumors most commonly found?
> > Maxilla, 3/4 anterior jaws
Radiographic aspects of Adenomatoid Odontogenic tumors
Lucent (pericoronal), may contain flecks of opacity.
Treatment of Adenomatoid Odontogenic tumors
Enucleation
Name the Mesodermal (Connective tissue) odontogenic tumors
- Central Odontogenic fibroma
- Peripheral Odontogenic fibroma
- Odontogenic Myxoma
- Cementum lesions
Clinical aspects of Peripheral Odontogenic fibroma?
(covered under non-neoplastic lesions)
- Reactive gingival lesion of PDL origin
- More common in young people
- More common in anterior gingiva
Clinical aspects of Odontogenic myxoma
Affects all ages (Increased in young)
Asymptomatic
+- Expansion
Radiographic aspects of Odontogenic Myxoma
Lucency often containing residual opaque trabeculae
Treatment of Odontogenic myxoma
Block resection
Name the types of Cementum lesions
- Central cemento-ossifying fibroma
- Benign cementoblastoma (true cementoma)
- Gigantiform cementoma
Which Cementum lesion is a neoplasm of PDL origin
Central cemento-ossifying fibroma
Clinical aspects of central cement-ossifying fibroma
- Affects Adults
- more commonly in Females
- More commonly in Blacks
- More commonly in Mandible
Asymptomatic & +-Expansion
Radiographic aspects of central cemento-ossifying fibroma
Well circumscribed
Associated with tooth roots
Completely lucent to mixed lucent/opaque to mostly opaque.
Treatment of Cemento-ossifying fibroma
Enucleation