Symptoms of an arteriovenous malformation (AVM) usually appear in mid-life. Symptoms may include:
- Difficulty speaking or finding words
- Numbness or weakness on one side
The initial diagnosis of an AVM may be made using computed tomography or magnetic resonance angiography. NewYork-Presbyterian also employs catheter angiography, which provides three-dimensional images of blood flow in the brain. Catheter angiography provides important information about both the location and structure of the AVM and is an important diagnostic tool.