title: Hydrocephalus due to extreme dilation of Virchow-Robin spaces.
abstract: Virchow-Robin spaces (VRS) are extensions of the subarachnoid space surrounding perforating blood vessels entering the brain parenchyma. VRS are fluid filled, but almost virtual and only visible on MRI of the brain when dilated. Such dilations are commonly asymptomatic. In rare cases, extreme dilations can be observed; the clinical repercussions of which remain unclear. We report the case of a patient presenting symptoms of normal pressure hydrocephalus due to extreme VRS mesencephalon dilations.
authors.affiliation: Centre Hospitalier Lyon-Sud, Service de médecine gériatrique, Hospices civils de Lyon, Pierre-Bénite, France Université Lyon 1, Villeurbanne, France.
authors.forename: Frederic
authors.initials: F
authors.lastname: Revel
authors.affiliation: Service de Radiologie, Université Lyon 1, Laboratoire d'Anatomie de Rockefeller, Lyon et Hospices civils de Lyon, Centre Hospitalier Lyon Sud, Pierre-Bénite, France CNRS UMR 5220, Université de Lyon, Université Lyon 1, CREATIS-LRMN, Villeurbanne, France.
authors.forename: Francois
authors.initials: F
authors.lastname: Cotton
authors.affiliation: Service de médecine gériatrique, Centre Hospitalier Lyon-Sud, Pierre-Bénite, France.
authors.forename: Max
authors.initials: M
authors.lastname: Haine
authors.affiliation: Service de médecine gériatrique, Centre Hospitalier Lyon-Sud, Pierre-Bénite, France.
authors.forename: Thomas
authors.initials: T
authors.lastname: Gilbert
mesh_terms: D000368:Aged; D001099:Arachnoid / Q000473:pathology*; D001921:Brain / Q000473:pathology*; D004108:Dilatation, Pathologic / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D006850:Hydrocephalus, Normal Pressure / Q000175:diagnosis / Q000209:etiology*; D008297:Male; D013346:Subarachnoid Space / Q000473:pathology