title: [Hydrocephalus after subarachnoid hemorrhage regressing spontaneously through the subgaleal layer: case report].
abstract: Spontaneous regression was recognized in a case of hydrocephalus after subarachnoid hemorrhage. The regression resulted after the absorption of cerebrospinal fluid through the subgaleal layer. The absorption of cerebrospinal fluid through this layer takes a long time but is one of nature's physiological pathways. The spontaneous regression of hydrocephalus through the subgaleal layer may be temporarily useful until a more effective physiological pathway is provided by a shunt operation to deal with hydrocephalus.
authors.affiliation: Department of Neurosurgery, Daito-chuo Hospital, 2-1-11 Ohno, Daito-city, Osaka 574-0042, Japan.
authors.forename: Hideaki
authors.initials: H
authors.lastname: Hayashi
authors.forename: Kazuyuki
authors.initials: K
authors.lastname: Noguchi
authors.forename: Ichiro
authors.initials: I
authors.lastname: Sunada
mesh_terms: D002555:Cerebrospinal Fluid / Q000378:metabolism*; D019299:Decompression, Surgical; D006801:Humans; D006849:Hydrocephalus / Q000209:etiology* / Q000503:physiopathology / Q000601:surgery; D002532:Intracranial Aneurysm / Q000150:complications / Q000601:surgery; D008297:Male; D008875:Middle Aged; D012075:Remission, Spontaneous; D012189:Retrospective Studies; D013345:Subarachnoid Hemorrhage / Q000150:complications*; D017287:Ventriculoperitoneal Shunt