The adenomatoid odontogenic tumor (AOT) is a benign, nonneoplastic (hamartomatous) lesion with a slow progressing growth. It occurs in both intraosseous and peripheral forms. This paper reports the case of a female aged 16 years who presented with a swelling in anterior maxilla; canine was missing, and a supernumerary tooth was present in the mid line. Radiology revealed a well-defined radioluc...

Adenomatoid odontogenic tumor (AOT) is an uncommon benign odontogenic lesion that affects young patients, with female predominance, mainly in second decade, showing a radiolucent unilocular image associated with an unerupted tooth, usually a canine. In spite of previous and confusing denominations, such as adenoameloblastoma or adenomatoid ameloblastic tumor, AOT is a benign tumor with a very l...

The patient was a girl in her teens. A panoramic radiograph revealed an impacted canine and a mixture of radiolucency and radiopacity in the right sinus. The patient was referred to the Dental Clinical Division, Hokkaido University Hospital. She had no subjective symptoms. A slight bone expansion from the base of the right ala of the nose to the infraorbital region was palpable, but no tenderne...