A Case of Multiple Dermoid Cyst of the Floor of the Mouth / 대한이비인후과학회지

A multiple dermoid cyst is a rare tumor in the floor of the mouth. It presents as abnormal cystic development in the midline as a result of displaced or enclaved embryonic epithelium during the midline closure of the first and second bilateral branchial arches. Dermoid cyst is classified inot three categories according to its histological type; dermoid, epidermoid, and teratoma. The treatment of choice is complete surgical excision and prognosis is excellent. We present a recently encountered case of a multiple dermoid cyst in the floor of the mouth; the cyst was removed using the intraoral approach.