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[Fibrous polyp of the ureter].

Benign tumors in the upper parts of the urinary tract are rare. The clinical symptoms of flank pain and/or macrohematuria often present problems concerning differential diagnosis. As radiological sign the smoothly bound filling defect with possible ureter obstruction is characteristic but not convincing. Therefore the diagnosis can only be made by operation and a simultaneous histological analysis. This report is based on a female patient with symptoms of flank pain and macrohematuria. By operative exploration a fibrous ureteral polyp was found which was then excised through an ureterotomy.