title: Suprasellar arachnoid cyst diagnosed preoperatively by computerized tomographic scanning.
abstract: True arachnoid cysts of the suprasellar region are uncommon and have rarely been diagnosed pre-operatively. An histologically verified suprasellar arachnoid cyst producing hydrocephalus and visual loss in a 19-year-old man was diagnosed by a combination of pneumoencephalography and computerized tomographic (CT) scanning prior to surgery. The incidence, pathogenesis, signs, and treatment of suprasellar arachnoid cysts are discussed.
mesh_terms: D000328:Adult; D001099:Arachnoid; D001921:Brain / Q000000981:diagnostic imaging*; D003397:Craniopharyngioma / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery; D006261:Headache / Q000209:etiology; D006801:Humans; D008297:Male; D011011:Pneumoencephalography; D014057:Tomography, X-Ray Computed; D014786:Vision Disorders / Q000209:etiology