Chapter 15 - Odontogenic Tumors Flashcards
Ameloblastoma
MOST COMMON CLINICALLY SIGNIFICANT ODONTOGENIC TUMOR
Dental epithelial tumor
Slow growing
Locally invasive
Painless swelling - expansion (may grow to grotesque proportions)
Multilocular - Radiolucent (SOAP BUBBLES)
Treatment – RESECTION
Tumor infiltrates into surrounding trabecular that is not apparent radiographically
Adenomatoid Odontogenic Tumor
Dental Epithelial Tumor
Anterior Maxilla
Young patients
Asymptomatic - detected when mx tooth will not erupt
“Gland-Like”
Ameloblasts
SNOWFLAKE radiographic appearance
Treatment – enucleate
Calcifying Epithelial Odontogenic Tumor
Dental Epithelial Tumor
“PINDBORG TUMOR”
Painless swelling
Unilocular or multilocular
DRIVEN SNOW
Histology:
- Amyloid –> Stains with CONGO RED and appears green
- Calcifications of amyloid – liesegang rings
Treatment - conservative resection
Ameloblastic Fibroma
Mixed Tumor – Epithelium and Mesenchyme
Young
Posterior mandible
Asymptomatic
Histology:
- Pulp
- Ameloblasts
Treatment – local excision
Ameloblastic Fibro-Odontoma
Similar to Ameloblastic Fibroma
CALCIFICATIONS - from ameloblasts
Unilocular
Odontoma
MOST COMMON ODONTOGENIC TUMOR
Development anomaly - harmatoma
2 types – Compound and Complex
Treatment – Simple excision
Compound Odontoma
Small tooth like structures
ANTERIOR
Complex Odontoma
Mass of dentin and Enamel
POSTERIOR
May be confused for a osteoma
Odontogenic Myxoma
Dental mesenchymal tumor
Anywhere
Unilocular - multilocular
Soap bubble - similar to ameloblastoma
Ameloblastic Fibroma –> Ameloblastic Fibro-Odontoma –> Odontoma
.
Differential Diagnosis for Calcification in RL
Calcifying Odontogenic Cyst (Gorlin’s Cyst)
Calcifying Epithelial Odontogenic Tumor (CEOT)
Ameloblastic Fibro-Odontoma (AFO)
Adenomatoid Odontogenic Tumor (AOT)
