A 14 year old patient reported to the department of Oral Medicine & Radiology with a chief complaint of swelling in his right lower back region of jaw since 4 months. Provisional diagnosis was made as dentigerous cyst i.r.t. 48 based on age of the patient, location of swelling, clinical and radiographic findings. Differential diagnosis was made as Unicystic ameloblastoma (Mural) and Odontogenic keratocyst.
Histopathological report came out to be unicystic ameloblastoma with mural and intraluminal proliferation.
Unicystic ameloblastomas are seen most often in younger patients, with about 50% of all such tumors diagnosed during the second decade of life. The average age in one large series was 23 years. More than 90% of unicystic ameloblastomas are found in the mandible, usually in the posterior regions. The lesion is often asymptomatic, although large lesions may cause a painless swelling of the jaws. In mural unicystic ameloblastoma, the fibrous wall of the cyst is infiltrated by typical follicular or plexiform ameloblastoma. These tumors are usually treated as cysts by enucleation.