This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gynaecological Disorders in Obs., Subject name: Gynaecology & Obstetrics
In a case of ovarian tumor revealed unilateral ovarian tumor with ascites positive for malignant cells. Laparotomy is performed. All other structures were free of disease. Stage of her disease is: 
Select and explain. 
A. Stage I c, B. Stage III a, C. Stage III b, D. Stage III c
A: Stage I c
Answer: A: Stage I c 
Explanation: Ans. A. Stage I cThe patient falls under FIGO staging, stage Ic because it has ovarian tumor with ascites positive for malignant cells.