This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vulvar cancer, Subject name: Gynaecology & Obstetrics
[{'content': 'Which of these is FALSE of vulvar carcinoma? \nSelect and explain. \nA. Most common type is squamous cell carcinoma, B. In situ vulvar cancer occurs more commonly in older females, C. Basaloid or way type is associated with HPV, D. Keratinising type is associated with lichen sclerois and occurs in older females', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Most common histological type of ca vulva is squamous cell carcinoma In situ vulval cancer occurs more commonly in young females due to rising incidence of HPV infection. Basaloid or way types Keratinizing 40% of squamous 60 % of squamous Multifocal Unifocal Younger patients Older patients Related to HPV Not related to HPV, related to lichen sclerosis Usual VIN, immunosuppression, smoking related Differentiated VIN, chronic inflammatory dermatosis', 'role': 'assistant'}]