title: Acute subdural hematoma in young patient with moyamoya disease--case report.
abstract: A 17-year-old boy with known moyamoya disease developed an acute subdural hematoma after a mild head trauma. He had been confined to a wheelchair with contracture in the upper and lower extremities due to juvenile rheumatoid arthritis since age 1 year. He had undergone encephalo-duro-arterio-synangiosis (EDAS) on the right and encephalo-myo-synangiosis (EMS) on the left at 13 years of age. He was admitted with headache, nausea, and vomiting after a fall from his wheelchair at age 17. Computed tomography on admission showed a large acute subdural hematoma in the right fronto-temporal region but no bleeding at the EDAS or EMS sites. Cerebral angiography 12 weeks after the head trauma revealed a remarkable reduction in the spontaneous transdural external-internal carotid anastomoses in the right frontal region. The acute subdural hematoma was probably caused by rupture of the spontaneous transdural anastomoses.
authors.affiliation: Department of Neurosurgery, Niigata University.
authors.forename: S
authors.initials: S
authors.lastname: Takeuchi
authors.forename: A
authors.initials: A
authors.lastname: Ichikawa
authors.forename: T
authors.initials: T
authors.lastname: Koike
authors.forename: R
authors.initials: R
authors.lastname: Tanaka
authors.forename: H
authors.initials: H
authors.lastname: Arai
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D006408:Hematoma, Subdural / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D008297:Male; D009072:Moyamoya Disease / Q000150:complications* / Q000000981:diagnostic imaging; D011859:Radiography