Calcifying cystic odontogenic tumor associated with unicystic ameloblastoma: Report of a rare hybrid odontogenic tumor

摘要

A hybrid odontogenic tumor comprising two distinct lesions is extremely rare. In this paper, we report one such case of hybrid odontogenic tumor composed of calcifying cystic odontogenic tumor and unicystic ameloblastoma in the left maxillary anterior region of a 30-year-old Indian male. Calcifying cystic odontogenic tumor (CCOT) is a benign cystic neoplasm of odontogenic origin, which involves association of a cyst (calcifying odontogenic cyst) with an odontogenic tumor, a finding which is a rare event in other types of odontogenic cysts or tumors. CCOT associated with unicystic ameloblastoma is a rare entity with very few cases being documented in literature. Preoperative diagnosis of such hybrid lesions can be difficult or sometimes impossible because it shares significant clinical and radiographic similarities with odontogenic cysts and tumors.