A case of supermassive cemento-ossifying fibroma in the mandible

Cemento-ossifying fibroma (COF) is a rare benign tumor consisting of fibrous tissue with cementum- or bone-like hard tissue that shows slow, distensible growth without clinical symptoms such as pain, but often results in facial deformity and malocclusion as the tumor grows. In this report, we present a case of a supermassive COF enlarged to the size of an adult's head, with symptoms including dysphagia and feeding difficulties, that was successfully treated surgically.