This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
True about border line ovarian tumors is all except 
Select and explain. 
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.
B: High rate of recurrence following surgery.
Answer: B: High rate of recurrence following surgery. 
Explanation: Borderline ovarian tumors do not often recurr following initial surgery.