Twelve cases of fibrous ureteral polyps are presented, illustrating their characteristic radiographic appearances. Two types--a long pedunculated mobile variety having a smooth surface, and a relatively shorter lesion covered with thin, finger-like projections--may be identified. Demonstration of the typical findings on excretory urography and/or retrograde ureterography establishes the diagnosis and permits surgical conservatism. Although no sex preponderance was noted, a wide sex-related age disparity was observed, the involved males being much younger than the females.