Mandible, Ameloblastoma

Details
Disease Category
Gender
Age
49 years
Organ System/Discipline
Diagnosis
Ameloblastoma
Clinical History

Mandibular mass.

Case Discussion

Ameloblastoma is a benign but locally aggressive neoplasm that can recur. It most commonly occurs in the posterior mandible (80%) followed by posterior maxilla (20%). There are 3 main variants: 1) classic solid/multi-cystic; 2) unicystic; 3) peripheral; based on clinical behaviour, radiographic features and histopathology.

Microscopically it is polymorphous composed of proliferating odontogenic epithelium within a mature fibrous stroma. The epithelium consists of islands of angular cells surrounded by cuboidal or columnar cells which can show palisading, reverse polarization and subnuclear vacuolization.

Image Contributors
Papp, S., Lu, F.

Cite

Papp, S., Lu, F. Mandible, Ameloblastoma. Digital Laboratory Medicine Library, Dept of Laboratory Medicine & Pathobiology, University of Toronto. Published . Accessed December 17, 2025. https://dev.dlml.cflabs.ca/image/mandible-ameloblastoma-lmp51206