title: Increased intracranial pressure caused by non-space-occupying arachnoid cysts: report of two patients.
abstract: In this article we report on two patients with arachnoid cysts previously treated by shunt implantation presenting with clinical signs of an increased intracranial pressure i. e., papilledema, headache and nausea. Repeated MRI scans showed no alteration of the cerebrospinal fluid circulation and no space-occupying effect of the cysts. Although neuroimaging showed no signs of increased intracranial pressure, neurosurgical exploration was performed and revealed a distinctly increased pressure in both arachnoid cysts. After replacement of the shunt a prompt reduction of papilledema and relief of symptoms was observed.
authors.affiliation: Department of Pediatrics, University of Saarland, Homburg/Saar, Germany. ulrike.lindner@uks.eu
authors.forename: U
authors.initials: U
authors.lastname: Lindner
authors.forename: B
authors.initials: B
authors.lastname: Bubl
authors.forename: W-I
authors.initials: WI
authors.lastname: Steudel
authors.forename: P
authors.initials: P
authors.lastname: Papanagiotou
authors.forename: B
authors.initials: B
authors.lastname: Käsmann-Kellner
authors.forename: L
authors.initials: L
authors.lastname: Gortner
authors.forename: M G
authors.initials: MG
authors.lastname: Shamdeen
mesh_terms: D000293:Adolescent; D016080:Arachnoid Cysts / Q000150:complications / Q000473:pathology / Q000601:surgery*; D002557:Cerebrospinal Fluid Shunts / Q000009:adverse effects*; D002648:Child; D006801:Humans; D019586:Intracranial Hypertension / Q000209:etiology* / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008297:Male