[Radiation side effects of neutron and photon therapy of soft tissue sarcomas. Results of a 4-year pilot study].
Within the frame of a four-year pilot study, 41 soft tissue sarcomas were treated with neutrons (31 patients), photons (3 patients), or a combination of both radiations (7 patients). All three patients submitted to relatively high neutrons doses (N + gamma) of 19 Gy showed marked radiogenic side effects. A relatively high percentage of radiogenic side effects (4/11) was observed after a total dose of 18 Gy, too. However, doses of 16 to 17 Gy did not cause any severe troubles. After doses below 16 Gy, the local recurrence rate is relatively high.