Gynaecology & Obstetrics General 09a57755 True about border line ovarian tumors is all except A Approximately 10 % of epithelial tumors of ovary are classified as borderline tumors. B High rate of recurrence following surgery. C Well differentiated tumors. D Do not invade the basement membrane. High-Yield Explanation Borderline ovarian tumors do not often recurr following initial surgery.