neurologic disorders
Subarachnoid Hemorrhage (SAH)
Etiology of Subarachnoid Hemorrhage
Subarachnoid hemorrhage is bleeding between the arachnoid and pia mater. In general, Traumatic Brain Injury (TBI) is the most common cause of subarachnoid hemorrhage, but traumatic subarachnoid hemorrhage is usually considered a separate disorder. Spontaneous (primary) subarachnoid hemorrhage usually results from ruptured Less common causes are mycotic aneurysms, arteriovenous malformations, and bleeding disorders. 