A Case of Adenomatoid Odontogenic Tumor

Yang, Young June; Kim, Yong Bok; Yoo, Seung Hoon; Park, Moon Suh

Abstract

Adenomatoid odontogenic tumor (AOT) which accounts for only about 3% of all odontogenic tumors is characterized by the duct-like structures of epithelial components at the lesion. There are three variants of AOT; 1) follicular, a central lesion associated with an embedded tooth; 2) extrafollicular, a central lesion without connection to a tooth; and 3) peripheral. AOT slowly grows with few or no symptom. The central variants account for 97.2%, 73.0% of which are follicular variants. AOTs occur most commonly in the second and third of life and have a distinct predilection for the anterior maxilla of young female. The pathogenesis of this odontogenic tumor appears to involve persistent remnants of the dental lamina, especially after odontogenesis of the successional and accessional laminae. Conservative surgical excision is the treatment of choice.