...support group in Deland fl? Cerebral arteriovenous malformation (AVM) is a malformed collection of blood vessels within the brain, characterized by tangle(s) of veins and arteries because of this i had a stroke and i fell like i need to talk to others that know what i am going through i am only 25 is very hard to deal i found support groups on line but is not the same as being there with others going through the same thing as me.