This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Tumor Markers, Subject name: Gynaecology & Obstetrics
Ca 125 is elevated in all. Except - 
Select and explain. 
A. Tuberculosis, B. Endometriosis, C. Ovarian tumor, D. Polycystic ovarian disease
D: Polycystic ovarian disease
Answer: D: Polycystic ovarian disease 
Explanation: Ans. is 'd' i.e. "Polycystic ovarian disease (Ref : Shaws, 13/e, p 372 (12/e, p374))Ca-125 is raised inEndometriosisAbdominal tuberculosisPIDMalignant epithelial ovarian tumoursChronic liver diseaseNormal woman - (2%)