title: Extrafollicular adenomatoid odontogenic tumor: a case report.
abstract: The adenomatoid odontogenic tumor (AOT) is a benign, non-invasive lesion with a slow but progressive growth. This tumor has three variants: follicular, extrafollicular, and peripheral. The extrafollicular type is an intraosseous lesion that is not associated with unerupted teeth. Radiographically, it appears as a well-defined, unilocular, round or ovoid radiolucency with multiple, small, irregular radiopaque foci. Microscopically, it is characterized by nodules of cuboidal or columnar epithelial cells that form nests, rosette or duct-like structures (with minimal stromal connective tissue), and acellular calcifications. This article presents the case of a 35-year-old man with a lesion on the anterior mandible. Clinical and radiographic features indicate that this lesion is an extrafollicular variant of AOT.
authors.affiliation: Department of Stomatology and Oral Pathology, UNILAVRAS-Lavras, Minas Gerais, Brazil.
authors.forename: Estela
authors.initials: E
authors.lastname: Kaminagakura
authors.forename: Marilia Sousa
authors.initials: MS
authors.lastname: Costa
authors.forename: Maria Candida Almeida
authors.initials: MC
authors.lastname: Lopes
authors.forename: Oslei Paes
authors.initials: OP
authors.lastname: de Almeida
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008339:Mandibular Neoplasms / Q000473:pathology*; D009808:Odontogenic Tumors / Q000473:pathology*