The authors present the outcomes of treatment of 107 patients with histologically verified diagnosis of medulloblastoma. Of these, 22 children were subjected only to surgical treatment, 25 – operative and radiotherapy, and 60 – polychemotherapy as a stage of a comprehensive or combined treatment. It was determined that survival of children with medulloblastoma was influenced by such factors as the presence of polychemotherapy and radiotherapy, a residual tumour following nonradical removal thereof, involvement of the brain stem into the tumour process, as well as tumour cells in the lumbal liquor. Carrying out ventriculoperitoneal by-pass decreases survival of patients with medulloblastoma. © 2002, Fund - Doctors, Innovations,Science for Children. All rights reserved.