title: Spinal dural arteriovenous fistula with perimesencephalic subarachnoid haemorrhage.
abstract: A case is reported of a 66 year old woman presenting with perimesencephalic subarachnoid haemorrhage (SAH) which was caused by a spinal dural arteriovenous fistula at the C1 level. The fistula drained into the venous system of the posterior cranial fossa through a perimedullary vein. The bleeding was thought to result from venous hypertension induced by the fistula. This case may support the hypothesis that perimesencephalic non-aneurysmal SAH can be ascribed to venous bleeding and that venous hypertension is the key to its pathology.
authors.affiliation: Department of Neurosurgery, Okanami General Hospital, Ueno, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Hashimoto
authors.forename: J
authors.initials: J
authors.lastname: Iida
authors.forename: Y
authors.initials: Y
authors.lastname: Shin
authors.forename: Y
authors.initials: Y
authors.lastname: Hironaka
authors.forename: T
authors.initials: T
authors.lastname: Sakaki
mesh_terms: D000368:Aged; D001164:Arteriovenous Fistula / Q000150:complications* / Q000601:surgery; D002574:Cervical Vertebrae; D015444:Exercise; D005260:Female; D006261:Headache / Q000209:etiology*; D006801:Humans; D008636:Mesencephalon / Q000601:surgery; D013116:Spinal Cord / Q000098:blood supply* / Q000601:surgery; D013345:Subarachnoid Hemorrhage / Q000209:etiology* / Q000601:surgery