What are the different forms of cerebral aneurysms that occur?

An aneurysm is an abnormal local dilatation in the wall of a blood vessel, usually an artery, due to a defect, disease or injury Morphological forms include: Saccular(Berry) Fusiform Mycotic Dissecting The most common formMainly occurs at the bifurcation of...

What are the causes of subarachnoid haemorrhage (SAH)?

Aneurysmal SAH (aSAH)Cause 75% Saccular (berry) aneurysm ACOM (35%)PCOM and ICA (35%)MCA (20%)Bifurcation of the basilar artery (4%)Posterior circulation (8%)Mycotic aneurysm (rare) Non-aneurysmal SAH Peri mesencephalic haemorrhage (10%)A-V Malformations...