This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'The aery commonly involved in cirsoidaneurysm is ? \nSelect and explain. \nA. Occipital, B. Superficial temporal, C. Internal carotid, D. External carotid', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Superficial temporal Cirsoid aneurysm is a dilatation of a group of blood vessels d/t congenital malformation with aeriovenous shunting (also k/a Racemose aneurysm) Superficial temporal aery is the most common vessel involved.", 'role': 'assistant'}]