title: [Two cases of spinal arteriovenous malformation presenting with subarachnoid hemorrhage].
abstract: Two cases of spinal arteriovenous malformation (AVM) with subarachnoid hemorrhage (SAH) are reported. The first case is that of a 14-year-old boy who was transferred to our hospital with a sudden onset of headache. Neurological examination revealed no motosensory deficit, but a brain CT showed a slight diffuse SAH. A left vertebral angiogram demonstrated intramedullary AVM in the cervical region of the spinal cord. This AVM was therefore occluded using a solid embolization material. The patient was then discharged without neurological deficit. The second case is that of a 67-year-old man who visited our hospital with a sudden onset of headache. Neurological examination revealed no motor or sensory deficit, but a brain CT showed SAH, which was dominant in the posterior fossa. Initial cerebral angiography demonstrated no abnormality such as cerebral aneurysm or AVM except for laterality of the C1 radiculo-meningeal artery. A second angiogram on day 11 demonstrated spinal arteriovenous fistula (AVF), which was fed by the left radiculo-meningeal artery and drained to the posterior spinal vein. Embolization for the AVF was performed using liquid material. He was then discharged without neurological deficit. These two cases revealed non-specific SAH symptoms and were indistinguishable from other ruptured aneurysms. Although the brain CT can show a slight SAH or posterior fossa dominant SAH, repeated angiography may be necessary to verify and conclude the diagnosis of spinal AVM.
authors.affiliation: Department of Neurosurgery, Sasebo City General Hospital. kenkunijp@yahoo.co.jp
authors.forename: Kentaro
authors.initials: K
authors.lastname: Hayashi
authors.forename: Hideaki
authors.initials: H
authors.lastname: Takahata
authors.forename: Minoru
authors.initials: M
authors.lastname: Nakamura
mesh_terms: D000293:Adolescent; D000368:Aged; D001165:Arteriovenous Malformations / Q000150:complications* / Q000628:therapy; D001921:Brain / Q000000981:diagnostic imaging; D004621:Embolization, Therapeutic; D006801:Humans; D008297:Male; D013116:Spinal Cord / Q000098:blood supply*; D013345:Subarachnoid Hemorrhage / Q000209:etiology*; D014057:Tomography, X-Ray Computed