This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gynaecological oncology, Subject name: Gynaecology & Obstetrics
A lady presented with carcinoma endometrium involving >50% of myometrium extending to vagina and positive peritoneal cytology but no involvement of para aoic and preaoic nodes. What is the stage of disease ? 
Select and explain. 
A. Ill A, B. Ill B, C. Ill C1, D. Ill C2
B: Ill B
Answer: B: Ill B 
Explanation: Endometrial cancer stage III: Stage IIIA: Involvement of uterine serosa and/ or adnexa Stage IIIB: Involvement of vagina and/or parametrium Stage IIIC: IIIC1: Positive Pelvic nodes IIIC2: Positive Paraaoic nodes with or without positive pelvic nodes Positive peritoneal cytology doesn&;t alter the stage Ref: FIGO SURGICAL STAGING 2014