title: Hydrocephalus due to villous hypertrophy of the choroid plexus in the lateral ventricles. Case report.
abstract: A case is reported of hydrocephalus due to overproduction of cerebrospinal fluid (CSF) caused by villous hypertrophy of the choroid plexus in the lateral ventricles. A 7-year-old girl with mental retardation developed gait disturbance; hydrocephalus and a Dandy-Walker cyst were detected on computerized tomography. She was initially treated with a ventriculoperitoneal shunt; however, shunting failed to control the hydrocephalus. The excessive outflow of CSF suggested choroid plexus abnormality, and magnetic resonance (MR) imaging revealed enlargement of the choroid plexus in both lateral ventricles. The patient was therefore diagnosed as having hydrocephalus induced by overproduction of CSF, which was controlled by resection of the choroid plexus. Histological examination showed the structure typical of normal choroid plexus. This is a rare case of villous hypertrophy of the choroid plexus in which MR imaging assisted in the diagnosis.
authors.affiliation: Department of Neurosurgery, University of Kagoshima, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Hirano
authors.forename: K
authors.initials: K
authors.lastname: Hirahara
authors.forename: T
authors.initials: T
authors.lastname: Asakura
authors.forename: T
authors.initials: T
authors.lastname: Shimozuru
authors.forename: K
authors.initials: K
authors.lastname: Kadota
authors.forename: S
authors.initials: S
authors.lastname: Kasamo
authors.forename: M
authors.initials: M
authors.lastname: Shimohonji
authors.forename: K
authors.initials: K
authors.lastname: Kimotsuki
authors.forename: M
authors.initials: M
authors.lastname: Goto
mesh_terms: D001927:Brain Diseases / Q000150:complications* / Q000175:diagnosis; D002555:Cerebrospinal Fluid; D002648:Child; D002831:Choroid Plexus / Q000000981:diagnostic imaging / Q000473:pathology*; D016545:Choroid Plexus Neoplasms / Q000150:complications; D005260:Female; D005910:Glioma / Q000150:complications; D006801:Humans; D006849:Hydrocephalus / Q000000981:diagnostic imaging / Q000209:etiology* / Q000473:pathology; D006984:Hypertrophy; D008279:Magnetic Resonance Imaging; D014057:Tomography, X-Ray Computed