Adenomatoid Odontogenic Tumor in Calcifying Odontogenic Cyst; A Case Report

The term calcifying odontogenic cyst was first used by Gorlin in 1962 to describe a new cystic entity with a peculiar pathogenesis and histologic feature. Other odontogenic tumors such as ameloblastoma, odontoma, ameloblastic fibroma, ameloblastic fibroodontoma, odontoameloblastoma, pindborg's tumor, and adenomatoid odontogenic tumor may seldom be associated with this lesion. This paper describes the case of a 16-year-old male with a remarkable combination of two entities. The lesion associated with an impacted canine tooth was detected at the mandibular left side, producing an extensive expansion of buccal cortical plate on panoramic view. During the operation, enucleation of the cyst was performed and the impacted canine tooth was extracted. The histologic specimen revealed the diagnosis of an adenomatoid odontogenic tumor (AOT) in a calcifying odontogenic cyst (COC).