This is a retrospective study on 41 cases with hydrocephalus caused by posterior fossa tumors treated at neurosurgery Dep., Cho Ray hospital from 1993 to 1995. All child patients entering the study had the intracranial pressure syndrome and evidence clinical, paraclinical symptoms. 18/41 cases had cerebellar symptoms (50%). 27 cases had the pathological results after tumor removal in which 20 cases were medulloblastoma (74.04%). The percentage of patients becoming worse postoperatively was still high: 7/27 cases (25.92%). To enhance the quality of treatment, it is necessary to make the diagnosis early and treat the patients actively.
Infratentorial Neoplasms ; Hydrocephalus