An arteriovenous malformation (AVM) is congenital, meaning it is something you’re born with. Simply stated, it is a problematic network of arteries and veins in the brain. This tangled network of blood vessels can leak, causing bleeding in the brain, and possibly a stroke.
Headaches or a seizure may signal the onset of a stroke related to arteriovenous malformation (AVM). Other neurological symptoms are possible, including muscle weakness, tingling or numbness and problems with vision, speech or movement. It is also possible to experience no symptoms prior to a rupture in the arteriovenous malformation (AVM).
Your doctor may perform a variety of tests to determine whether you have an arteriovenous malformation (AVM):
- Cerebral arteriography uses a colored dye and X-ray imaging to see the blood vessels in the brain
- Computerized tomography (CT) scan
- Magnetic resonance imaging (MRI) scan