전경부에 발생한 성숙 기형종 증례

Abstract

A teratoma is a tumor which has cells derived from all three germ layers (endoderm, mesoderm, ectoderm). Frequent sites of teratoma are sacrococcyx and gonads, and cervical teratoma is relatively rare. The ninety percent of its cases occurs in children. Cervical teratomas are typically located in the midline of neck, extending to mediastinum. Here we report a case of cervical mature teratoma in 21-year old male which is successfully removed by surgery, with the review of literature. (J Clinical Otolaryngol 2020;31:257-262)