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
[{'content': 'MC type of ca vulva is: \nSelect and explain. \nA. Squamous cell carcinoma, B. Melanoma, C. Adenocarcinoma, D. Adenosquamous carcinoma', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Squamous cell carcinoma * MC variety of vulvar cancer= Squamous cell carcinoma.* MC site= labia (majora and minora) followed by clitoris.* Risk factors for Ca vulva=HPV infection, cigarette smoking, lichen sclerosis, squamous hyperplasia, VIN.* Most patients are asymptomatic at the time of diagnosis.", 'role': 'assistant'}]