[Radiogenic fibrosarcomas (author's transl)].

Two radiogenic fibrosarcomas are presented. One of them appeared 22 years after a radiotherapy because of carcinoma of the body of the uterus. Criteria for the distinction between radiogenic sarcomas and secondary tumors are given and discussed. The authors present a diagram of all radiogenic fibrosarcomas after mastocarcinoma quoted in the literature of the world. This renders possible a comparison between applicated doses and latent periods.