title: Arachnoid cyst of the quadrigeminal cistern.
abstract: The case report of an infant girl with hydrocephalus due to an arachnoid cyst situated at the posterior end of the third ventricle is described. The mechanism of fluid accumulation in the cyst and the choice of surgical treatment are discussed.
mesh_terms: D000293:Adolescent; D000328:Adult; D001099:Arachnoid; D001927:Brain Diseases / Q000000981:diagnostic imaging / Q000601:surgery*; D014695:Cerebral Ventriculography; D002648:Child; D002675:Child, Preschool; D003560:Cysts / Q000000981:diagnostic imaging / Q000601:surgery*; D005260:Female; D006801:Humans; D006849:Hydrocephalus / Q000000981:diagnostic imaging / Q000601:surgery; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D014057:Tomography, X-Ray Computed