Figure 1a. Blood clot in an 86-year-old man with gross hematuria. (a) Volume rendered image from excretory phase CT data shows a large filling defect in the right renal pelvis and proximal ureter (arrow). (b) Axial excretory phase CT image shows a high-attenuation blood clot surrounded by contrast material in the proximal ureter (arrow).
Figure 1b. Blood clot in an 86-year-old man with gross hematuria. (a) Volume rendered image from excretory phase CT data shows a large filling defect in the right renal pelvis and proximal ureter (arrow). (b) Axial excretory phase CT image shows a high-attenuation blood clot surrounded by contrast material in the proximal ureter (arrow).
Figure 2a. Ureteral carcinoma in a 75-year-old man with gross hematuria. (a) Volume rendered image from excretory phase CT data shows an unremarkable urinary tract. (b) Axial excretory phase CT image shows diffuse thickening of the right ureteral wall (arrowhead), which represents low-grade transitional cell carcinoma.
Figure 2b. Ureteral carcinoma in a 75-year-old man with gross hematuria. (a) Volume rendered image from excretory phase CT data shows an unremarkable urinary tract. (b) Axial excretory phase CT image shows diffuse thickening of the right ureteral wall (arrowhead), which represents low-grade transitional cell carcinoma.