[Radiotherapy of the medulloblastoma: development of methods and results of the treatment of 30 patients from 1963 to 1976 (author's transl)].

The results of the treatment of 30 patients with medulloblastoma from 1963--1976 are analysed. 20% of all patients had no evidence of disease after five years. Radiation technique and dose were subject to change in these years and the results show, that a 5 year cure rate about 40% or more can only be achieved, if the radiation dose in the fossa posterior is about 5000 rd in 5--6 weeks. The ongoing studies will show, whether the results of an optimized radiotherapy can further be enhanced by chemotherapy.