2001 年 47 巻 3 号 p. 192-195
This report describes a very rare case of multiple and multilocular dermoid and epidermoid cysts in the upper lip of a child. Under general anesthesia, exploratory extirpation was carried out via an oral approach. Histological examination revealed a large mass composed of a multilocular dermoid cyst and multiple epidermoid cysts. The dermoid cyst wall had a keratinized squamous epithelial lining extending over sebaceous glands and hair follicles.