title: Choroid plexus papilloma: hydrocephalus and cerebrospinal fluid dynamics.
abstract: Dynamics of the cerebrospinal fluid were measured pre- and postoperatively in a patient with a choroid plexus papilloma associated with hydrocephalus. The production rate was 0.35 ml/min, absorption 0.0057 ml/min H2O, and the critical opening pressure 196 mm H2O. Following removal of the tumor, these values were 0.32 ml/min, 0.0053 ml/min/mm H2O, and 105 mm H2O, respectively. It was concluded that no over-production of cerebrospinal fluid was present in this case. The hydrocephalus was due solely to obstruction of the fourth ventricle.
mesh_terms: D000328:Adult; D001932:Brain Neoplasms / Q000134:cerebrospinal fluid / Q000150:complications*; D002831:Choroid Plexus / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D006849:Hydrocephalus / Q000134:cerebrospinal fluid / Q000209:etiology; D008297:Male; D010212:Papilloma / Q000134:cerebrospinal fluid / Q000150:complications*