title: An arachnoid cyst extending above and below the foramen magnum.
abstract: A case of progressive bulbar and long tract symptoms with hydrocephalus of eleven years duration in a 23-year-old man, in whom an arachnoid cyst of the cisterna magna cerebellomedullaris was disclosed at operation.
authors.affiliation: Department of Neuropsychiatry, Pontifical Catholic University of Campinas, SP, Brasil.
authors.forename: S L
authors.initials: SL
authors.lastname: Rossitti
authors.forename: R J
authors.initials: RJ
authors.lastname: Balbo
authors.forename: A
authors.initials: A
authors.lastname: Sperlescu
authors.forename: A R
authors.initials: AR
authors.lastname: Zuiani
authors.forename: A A
authors.initials: AA
authors.lastname: Roth-Vargas
mesh_terms: D000328:Adult; D001099:Arachnoid / Q000000981:diagnostic imaging / Q000601:surgery*; D010244:Bulbar Palsy, Progressive / Q000601:surgery; D002946:Cisterna Magna / Q000601:surgery; D003560:Cysts / Q000000981:diagnostic imaging / Q000601:surgery*; D005539:Foramen Magnum / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D006849:Hydrocephalus / Q000601:surgery; D008297:Male; D016136:Spina Bifida Occulta / Q000601:surgery; D014057:Tomography, X-Ray Computed