title: Acute obstructive hydrocephalus caused by a migrating intraventricular calculus. Case report.
abstract: A 10-year-old boy presented with acute obstructive hydrocephalus caused by the impaction of a calculus on the cerebral aqueduct. The calculus migrated from the third ventricle to the fourth ventricle after ventricular drainage and right ventriculoperitoneal shunt placement had been performed. The nature and origin of the calculus could not be determined, although its release from the choroid plexus in the lateral ventricle is highly possible.
authors: Department of Neurosurgery, Nagoya City Higashi General Hospital, Japan.
authors: E C
authors: EC
authors: Tan
authors: T
authors: T
authors: Takagi
authors: S
authors: S
authors: Matsuura
authors: S
authors: S
authors: Mizuno
mesh_terms: D000208:Acute Disease; D002114:Calcinosis / Q000150:complications* / Q000000981:diagnostic imaging; D002552:Cerebral Ventricles; D014695:Cerebral Ventriculography; D002648:Child; D006801:Humans; D006849:Hydrocephalus / Q000000981:diagnostic imaging / Q000209:etiology*; D008297:Male