DENTIGEROUS CYST MIMICKING AMELOBLASTOMA: CASE REPORT & REVIEW

Dr. Tanuja V. Mote*, Dr. Rajendra S. Birangane, Dr. Rohan S. Chaudhari, Dr. Pratik C. Parkarwar and Dr. Rashmi Rokade

ABSTRACT

Dentigerous cysts (DCs) are one of the most common types of cysts which arise in the jaw. A typical dentigerous cyst clinically presents as an asymptomatic, unilocular radiolucency which encircles the crown of an unerupted or an impacted tooth. In most of the cases, the analysis of a dentigerous cyst is straight forward; but even radiographically, a ‘typical’ dentigerous cyst can be identified as something else, such as an odontogenic keratocyst [a keratocystic odontogenic tumour (KCOT)] or a unicystic ameloblastoma on histological analysis. The histological diagnoses of these lesions are consequently critical. We are reporting a case of an ameloblastoma, which arose in the wall of a dentigerous cyst. The clinical, radiographic characteristics were similar to those of dentigerous cysts. Enucleation was done intraorally under local anesthesia. Post-operative excisional biopsy revealed strands and cords arising from the cystic lining, which are evocative of ameloblastoma.

Keywords: Dentigerous cyst, Ameloblastoma, Impacted Teeth.