사춘기에 발생한 부난소의 경계성 장액성 낭선종

Abstract

Parovarian tumor comprises about 10% of uterine adnexal tumor and is probably of paramesonephric, mesothelial or mesonephric origin. Most of them are benign and malignant tumors occur very rarely. The tumor usually occurs in premenopausal woman and rarely in adolescence. We present a case of parovarian serous borderline tumor occurring in adolescence. As far as we know, this is the first case of parovarian serous borderline tumor of adolescence in Korean literature. A 16-year-old female underwent cystectomy for cystic mass in mesosalpinx, apart from ovary and fallopian tube. The inner surface of the cystic mass showed a cauliflowerlike mural nodule, which was composed of papillary structures covered with atypical cells. Stromal invasion was not observed. The histologic features are similar to serous borderline ovarian tumor.