Most commonly located on the anterior part of circle of Willis (particularly on anterior or posterior communicating arteries, at the bifurcation of middle cerebral artery and at the bifurcation of internal carotid artery.
Most common are saccular .other forms are fusiform, diffuse, globular etc.
2. focal neurological deficit
4. Transitory internal weakness, numbness, tingling, or speech disturbance.
5. if rupture then loss of consciousness and death
CSF examination will show blood stains
EEG =side of hemorrhage
Angiography and CT scan.
Surgical by clipping, tigating the neck of the aneurysm.
Aminocaproic acid (fibrinolytic) 24 g/day i/v for 3 weeks
Sedatives and analgesics.