Malignant clear cell cystadenoma of the ovary

A 50-year-old female had suffered from abdominal distension and a lower abdominal mass for 3 months. Ultrasonographic examination demonstrated a myoma uteri pattern with a large cystic ovarian tumor. Laparotomy was done on August 30, 1983 and simple total hysterectomy with bilateral salpingo-oophorectomy was carried out. FIGO stage IIC ovarian cancer was stated clinically. Histologically, clear cell cystadenoma of right ovary having benign, proliferative and malignant epithelial elements without dense ovarian stroma was found and diagnosed as malignant clear cell cystadenoma. In spite of Cisplatin therapy, the patient expired on April 6, 1984.