title: Large cerebral arteriovenous malformation presenting with venous ischemia in the contralateral hemisphere. Case report.
abstract: The authors report a rare case in which a large cerebral arteriovenous malformation (AVM) located in the left parietooccipital region presented with venous ischemia in the contralateral hemisphere. A 74-year-old man was admitted to the hospital because he was experiencing a loss of appetite, disorientation, and left hemiparesis. Computerized tomography scans revealed a low-density area in the right temporal lobe. Angiography demonstrated a large AVM in the left parietooccipital lobe and dilation, stagnation, and meanders of cortical veins in the contralateral hemisphere. The authors speculated that the elevated sinus pressure caused by a huge venous return of blood from the AVM produced venous ischemia in the contralateral hemisphere.
authors.affiliation: Department of Neurosurgery, Onomichi Municipal Hospital, Onomichi, Japan. kkuro@mx4.tiki.ne.jp
authors.forename: Kazuhiko
authors.initials: K
authors.lastname: Kurozumi
authors.forename: Keisuke
authors.initials: K
authors.lastname: Onoda
authors.forename: Shoji
authors.initials: S
authors.lastname: Tsuchimoto
mesh_terms: D000368:Aged; D002545:Brain Ischemia / Q000175:diagnosis* / Q000628:therapy; D002533:Cerebral Angiography; D002540:Cerebral Cortex / Q000098:blood supply*; D002550:Cerebral Veins; D003937:Diagnosis, Differential; D004621:Embolization, Therapeutic; D007839:Functional Laterality; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000175:diagnosis* / Q000628:therapy; D008279:Magnetic Resonance Imaging; D008297:Male