the clinical and radiological files of 44 children with intracranial arteriovenous malformations ( avm ( 20 avms with ectasia of the vein of galen , 21 parenchymatous or choroid avms without ectasia of the vein of galen and 3 congenital dural av fistulas ) were reviewed .
C0007772
intracranial
C0003857
avms