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...
When an aneurysm ruptures: Blood pushes into the subarachnoid space at arterial pressure Intracranial pressure equalizes across the rupture site and stops the bleeding Thrombus formation at the bleeding site. Physical damage due to bleeding and mass effect Early brain...