Arteriovenous malformation (AVM)

Also known as: AVM
Arteriovenous malformation (AVM) is a congenital defect in which arteries and veins are tangled and not connected by capillaries. The lack of capillaries allows blood traveling through the abnormal vessels to flow rapidly and under high pressure and prevents the nutrient rich blood in the arteries from reaching the tissues. AVM can occur in many different parts of the body, but those located in the brain, brainstem and spinal cord (neurological AVM) can affect the entire body.


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