[Malignant tumors of the upper urinary passages (author's transl)].

Malignant tumors of the upper urinary passages are more frequent than one had formerly thought. Eleven case reports are presented in order to explain X-ray and differential diagnosis. The treatment consists in surgical nephrourethrectomy with lymphadenectomy. There are only few reports about indication and value of radiotherapy. A postoperative irradiation of the primary tumor region and the lymphatic outflow region is recommended for the stages B, C and D (without remote metastases). The suggested target volumes and doses are described.