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
The aery commonly involved in cirsoidaneurysm is ? 
Select and explain. 
A. Occipital, B. Superficial temporal, C. Internal carotid, D. External carotid
B: Superficial temporal
Answer: B: Superficial temporal 
Explanation: 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.