title: Ameloblastoma suggesting large apical periodontitis.
abstract: This case report describes the endodontic treatment of a large apical periodontitis with well-defined margins adjacent to teeth #22-24. After the initial endodontic treatment, continued expansion of the mandible cortical bone was observed, indicating a need to surgically enucleate the lesion and submit it for histopathologic examination. The microscopic examination indicated a diagnosis of ameloblastoma. Ameloblastoma is a benign epithelial neoplasm of odontogenic origin, and depending on the stage of development, it can mimic a periapical lesion and therefore should be considered in establishing an endodontic differential diagnosis. The definitive diagnosis for some periapical lesions can only be made by a histopathologic examination.
authors.affiliation: Dentistry Brazilian Association, Goiânia, GO, Brazil.
authors.forename: Luiz Augusto
authors.initials: LA
authors.lastname: Faitaroni
authors.forename: Mike Reis
authors.initials: MR
authors.lastname: Bueno
authors.forename: Artur Aburad
authors.initials: AA
authors.lastname: De Carvalhosa
authors.forename: Karin Astrid
authors.initials: KA
authors.lastname: Bruehmueller Ale
authors.forename: Carlos
authors.initials: C
authors.lastname: Estrela
mesh_terms: D000564:Ameloblastoma / Q000175:diagnosis*; D003937:Diagnosis, Differential; D018450:Disease Progression; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008336:Mandibular Diseases / Q000175:diagnosis; D008339:Mandibular Neoplasms / Q000175:diagnosis*; D008875:Middle Aged; D010485:Periapical Periodontitis / Q000175:diagnosis*; D012390:Root Canal Therapy