Gynaecology & Obstetrics Which one of the following is NOT an epithelial tumour of the ovary: September 2012 A Serous cystadenoma B Brenner tumour C Clear cell tumour D Endodermal sinus tumour 💡 Explanation Which one of the following is NOT an epithelial tumour of the ovary: September 2012 ✓ Correct Answer: D. Endodermal sinus tumour