Transoral Marsupialization of a Large Dermoid Cyst.

True dermoid cysts are rare congenital entities with a predilection for periorbital, floor-of-mouth, and submental areas in the head and neck region. They are usually asymptomatic unless they substantially enlarge, causing pain or difficulty in swallowing, breathing, speech, or vision, depending on their location. Conventionally, complete excision is the treatment of choice. The authors describe a transoral approach to marsupialize a large dermoid cyst, with a successful outcome and minimal complications. Using this technique, it is hoped that surgeons can minimize the risk of damaging vital structures, shorten operating time, and provide an esthetically better result with a comparable outcome.