Arteriovenous malformations are defects in the blood vessels that cause symptoms like headache, confusion, and memory lapses. Read about treatment options.Author: Brindles Lee Macon And Winnie Yu. Aug 13, 2019 · Arteriovenous malformations (AVMs) are abnormal, snarled tangles of blood vessels that cause multiple irregular connections between the arteries and veins. These malformations most often occur in the spinal cord and in any part of the brain or on its .
Dec 04, 2016 · Arteriovenous malformations (AVMs) are congenital lesions composed of a complex tangle of arteries and veins connected by one or more fistulae (see the image below). They most commonly occur in young adults, with morbidity and death .