title: Pseudotumor syndrome in treated arachnoid cysts.
abstract: We report three patients with arachnoid cysts treated by cyst-peritoneal shunting in whom intracranial hypertension occurred during episodes of shunt malfunction. In one case this was associated with re-expansion of the arachnoid cyst, whilst in the other two cases this did not occur. The similarities between these two cases and patients with pseudotumor cerebri suggest a common pathogenic mechanism--specifically, a disturbance of the cerebrospinal fluid circulation.
authors.affiliation: Department of Neurosurgery, Royal Alexandria Hospital for Children, Sydney, Camperdown, Australia.
authors.forename: V J
authors.initials: VJ
authors.lastname: Maixner
authors.forename: M
authors.initials: M
authors.lastname: Besser
authors.forename: I H
authors.initials: IH
authors.lastname: Johnston
mesh_terms: D016080:Arachnoid Cysts / Q000000981:diagnostic imaging / Q000601:surgery*; D002557:Cerebrospinal Fluid Shunts / Q000009:adverse effects*; D002648:Child; D002675:Child, Preschool; D004868:Equipment Failure; D006801:Humans; D008297:Male; D010537:Peritoneum; D011559:Pseudotumor Cerebri / Q000000981:diagnostic imaging / Q000209:etiology*; D014057:Tomography, X-Ray Computed