Large epidermoid cyst in lateral floor of mouth and submandibular region

Abstract

Epidermoid cysts are infrequently found in the oral and neck region. Among the cases reported, several noted large epidermoid cysts are located in the floor of the mouth, with a maximum size of about 8 cm. Herein, we present a case of a large epidermoid cyst sized 11 cm × 9 cm × 9 cm, which was located in the floor of the mouth and reached the submandibular area across the mylohyoid muscle.