title: HYDROCEPHALUS DUE TO MEMBRANOUS OBSTRUCTION OF THE FOURTH VENTRICLE IN A CASE OF MULTIPLE SCLEROSIS.
mesh_terms: D002552:Cerebral Ventricles; D020546:Fourth Ventricle; D006801:Humans; D006849:Hydrocephalus; D009103:Multiple Sclerosis; D009493:Neurosurgery; D019635:Neurosurgical Procedures; D010336:Pathology
keywords: CEREBRAL VENTRICLES; HYDROCEPHALUS; MULTIPLE SCLEROSIS; NEUROSURGERY; PATHOLOGY