title: Third ventricular cysts and membranes unsuspected on conventional CT and MRI.
abstract: Three cases are presented of symptomatic cysts or membranes within the third ventricle interfering with CSF flow and presenting as non-communicating triventricular hydrocephalus. None was visible on conventional CT or MRI, two being discovered at neuroendoscopy and one only with a specific MRI sequence designed to show CSF partitioning.
authors.affiliation: Department of Neurosurgery, University Hospital, Queen's Medical Centre, Nottingham NG7 2UH, UK.
authors.forename: D C
authors.initials: DC
authors.lastname: MacArthur
authors.forename: I J
authors.initials: IJ
authors.lastname: Robertson
authors.forename: J A
authors.initials: JA
authors.lastname: Punt
mesh_terms: D000328:Adult; D003560:Cysts / Q000150:complications / Q000601:surgery*; D005260:Female; D006801:Humans; D006849:Hydrocephalus / Q000209:etiology / Q000601:surgery*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D020542:Third Ventricle / Q000601:surgery*; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D014696:Ventriculostomy