Question: are most ovarian tumors benign?
Answer: Not all tumors in the ovary are cancer. Ovarian tumors are classified as benign (non-cancerous), borderline or malignant (cancerous). Most epithelial ovarian tumors are benign and do not spread or cause cancer. There are many types of benign tumors such as serous cystadenomas, mucinous cystadenomas, and Brenner tumors.