title: Computed tomography of ureteral tumors.
abstract: Ten patients with one or more ureteral tumors were examined with CT. The tumor was clearly recognizable as a soft tissue mass (average density 46 HU) filling the ureter in nine of the patients. In five of these patients the tumor was not detected by urography. Tumors less than 5 mm in diameter were missed on CT in one patient. Although most ureteral tumors are detectable with urography and retrograde pyelography, CT can be a valuable diagnostic tool. Computed tomography is particularly advantageous in patients with nonfunctioning kidneys and in those in whom retrograde pyelography is unsuccessful.
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed; D014516:Ureteral Neoplasms / Q000000981:diagnostic imaging*