title: Psychosis-like syndrome associated with intermittent intracranial hypertension caused by a large arachnoid cyst of the left temporal lobe.
abstract: Lesions on certain brain areas can cause psychiatric signs. Symptomatic arachnoid cysts can produce a variety of symptoms like headache, seizures, increased ICP, and rarely psychiatric disorders. We report a case of a young woman with a left temporal lobe arachnoid cyst, presented with headache and an atypical psychosis. A 72-h epidural ICP recording revealed incidental elevation of ICP. After a permanent shunt was placed, patient's symptoms improved substantially, and antipsychotic medication was significantly reduced.
authors.affiliation: Department of Neurosurgery, University of Crete, Medical School, Heraklion University Hospital, Heraklion, Crete, Greece.
authors.forename: Antonis F
authors.initials: AF
authors.lastname: Vakis
authors.forename: Dimitris I
authors.initials: DI
authors.lastname: Koutentakis
authors.forename: Dimitris A
authors.initials: DA
authors.lastname: Karabetsos
authors.forename: George N
authors.initials: GN
authors.lastname: Kalostos
mesh_terms: D000328:Adult; D016080:Arachnoid Cysts / Q000150:complications* / Q000601:surgery; D005260:Female; D006261:Headache / Q000209:etiology*; D006801:Humans; D019586:Intracranial Hypertension / Q000209:etiology*; D007427:Intracranial Pressure / Q000502:physiology; D008279:Magnetic Resonance Imaging; D011618:Psychotic Disorders / Q000209:etiology*; D013702:Temporal Lobe; D014057:Tomography, X-Ray Computed; D017287:Ventriculoperitoneal Shunt