title: Adenomatoid odontogenic tumor mimicking a periapical (radicular) cyst: a case report.
abstract: The adenomatoid odontogenic tumor (AOT) is a benign (hamartomatous), noninvasive lesion with slow but progressive growth. A rare subvariant of the extrafollicular type of AOT may mimic periapical disease radiographically. We report on a 15-year-old girl with a periapical radiolucent lesion affecting teeth 7 and 8 initially suspicious of periapical disease, although clinical findings seemed to indicate a nonendodontic lesion. An exploratory surgical approach was chosen, and the final diagnosis of the removed noncystic tissue mass was microscopically confirmed to be an AOT.
authors.affiliation: Guadalmina Alta, San Pedro de Alcantara, Spain.
authors.forename: Hans Peter
authors.initials: HP
authors.lastname: Philipsen
authors.forename: Thanapen
authors.initials: T
authors.lastname: Srisuwan
authors.forename: Peter A
authors.initials: PA
authors.lastname: Reichart
mesh_terms: D000293:Adolescent; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007180:Incisor / Q000473:pathology; D008439:Maxillary Diseases / Q000175:diagnosis*; D008441:Maxillary Neoplasms / Q000175:diagnosis*; D009808:Odontogenic Tumors / Q000175:diagnosis*; D011842:Radicular Cyst / Q000175:diagnosis*; D014092:Tooth Root / Q000473:pathology