system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A female presented with severe headache of sudden onset. On CT scan a diagnosis of subarachnoid heamorrhage is made. The most common site of subarachnoid haemorrhage is -
assistant
The correct answer is  Ans. is ' b' ie. Berry Aneurysm rupture "Excluding head trauma the most common cause of SAH is rupture of a saccular aneurysm (Berry aneurysm or congenital aneurysm)."