우리는 드물게 발견되는 성인에서의 부신 기형종의 증례를 보고하였다. 부신 기형종은 성인에서 드물게 발생하는 질환이며 복강경하 부신 절제술이 추천된다. 악성 변환 가능성이 높아 근접한 추적관찰이 필요하며 현재 다양한 진단 기술과 영상 기술의 향상으로 이전보다 더 발견 사례가 증가할 것으로 보이나 다른 후복막의 지방종성 종양과 기형종과의 정확한 감별 진단 방법이 정립되어야 한다.

Teratoma is a congenital tumor containing tissues derived from all germ layers. Teratoma in the region of the adrenal gland is a very uncommon retroperitoneal tumor. Only 7 cases of adrenal teratoma have been reported worldwide, but in Korea, no similar cases have been reported until now. This case report describes an adrenal teratoma in a 38-year-old healthy woman who was incidentally diagnosed with a left adrenal mass on abdominal ultrasonography during a medical inspection. Computed tomographic scans revealed a 9-cm heterogeneous circumscribed round mass, containing primarily fat tissue, and a solid calcification component in the left adrenal gland. Adrenal hormonal assessment results and biochemical markers for gonadal neoplasia were negative. Result of serum laboratory tests were normal. The patient underwent laparoscopic adrenalectomy. Histologic analysis confirmed the diagnosis of a mature teratoma; the obtained specimen measured 5 × 7 × 7.5 cm and weighed 267 g. The surface of the mass was smooth, and sebaceous tissue and hair with hard material were observed on the incisional surface. The patient was discharged on postoperative day 4, without complications. In this case report, we describe the incidental finding of a teratoma occurring in the adrenal gland region in a healthy woman; the teratoma was laparoscopically excised. (Endocrinol Metab 26:272-275, 2011)