Adenomatoid odontogenic tumor: a case report with unusual clinical features

Resumo

Adenomatoid odontogenic tumors (AOT) are benign, non-invasive and slow growing tumors. The tumor typically affects the young population, particularly in females, and the majority of cases is diagnosed in the second decade of life. There are three variants of AOT: follicular, extrafollicular, and peripheral. The present report illustrates a case of AOT with unusual findings, including a relatively large size arising within the mandible, causing the expansion of the buccal and lingual cortical bone. Orthopantomography revealed a well defined radiolucent lesion circumscribed by a radiopaque halo around the root of tooth 43, which caused the displacement of the roots of teeth 42 and 44. An incisional biopsy was performed and the surgical specimen was submitted for histophatological examination, which revealed the diagnosis of TOA. The treatment performed was a surgical excision of the lesion, and no complications or recurrence of the lesion have been noted after 1 year of follow-up.