Christopher Ravi Bailey BA, Abstract Co-Author: Nothing to Disclose

Elliot K. Fishman MD, Abstract Co-Author: Research support, Siemens AG Advisory Board, Siemens AG Research support, General Electric Company Advisory Board, General Electric Company Co-founder, HipGraphics, Inc

Pamela Tecce Johnson MD, Presenter: Research funded, Becton, Dickinson and Company

Noncontrast CT for is a commonly performed exam for patients with flank pain and hematuria. The diagnosis of alternative renal pathology is markedly limited without IV contrast. In some cases, however, a transitional cell carcinoma may be apparent on a noncontrast CT. The purpose of this exhibit is to Illustrate the noncontrast CT findings in upper tract, ureteral and bladder transitional cell carcinomas Demonstrate the importance of a high contrast window and coronal MPRs to facilitate the diagnosis

Background Rising utilization of noncontrast CT in patients with flank pain and hematuria LIterature review with respect to utility for identifying alternative renal pathology Technique High contrast window to increase conspicuity of soft tissue lesions against background of fluid  Case series of TCC findings on noncontrast CT Calyces  Pelvis Ureter Bladder Bladder diverticulum

http://abstract.rsna.org/uploads/2014/14002668/14002668_jrsx.pdf

Bailey, C, Fishman, E, Johnson, P, Transitional Cell Carcinoma: Non-contrast CT Findings.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14002668.html