An aneurysm is an abnormal widening or bulging in the wall of a blood vessel and occurs more often in arteries than in veins.

A cerebral aneurysm (also called intracranial or brain aneurysm) is a bulging, weakened area in an artery wall, disrupting blood flow.

What’s it like to have an MRI and how does it work? This animation demonstrates the magnetic resonance imaging procedure and shows how an MRI forms images of places deep inside your body.

Peripheral vascular disease, or PVD, is a slow and progressive circulation disorder that may affect any of the veins, arteries, or lymph vessels.

A stroke is a frighteningly destructive attack that can leave you paralyzed, rob you of speech, and destroy your memories. This animation shows how a stroke occurs, exploring causes and effects, and detailing the damage that can result.

Stroke, also called brain attack, occurs when blood flow to the brain is disrupted.

Take this multiple choice quiz with six questions to see how much you know about stroke.

Treatment for stroke is most effective when started immediately. Treatment options vary based on the type, severity, and location of the stroke.