A female presented with the severe headache of sudden onset. On CT scan a diagnosis of subarachnoid haemorrhage is made. The most common site of subarachnoid haemorrhage is -
Excluding head trauma the most common cause of SAH is rupture of a saccular aneurysm (Berry aneurysm or congenital aneurysm)." Ref : Harrison, 17/e p1726
Middle meningeal aery
Berry aneurysm rupture
Basilar aery
Subdural venous sinuses
Head and neck