[Primary tumors of the ureter (author's transl)]

13 own cases of primary tumors of the ureter are presented and discussed with reference to the presenting clinical symptoms, diagnostic procedures, and therapy. In our patients, excretory urography was not always of diagnostic value, whereas retrograde pyelography contributed to the correct diagnosis. The radiographic appearance of ureteral tumors has to be differentiated from strictures. In one case with a calcified papilloma, preoperative roentgendiagnosis suggested an ureteral stone.