Renal cell carcinoma with a tumor thrombus in the ureter: a case report
Osamu Fujita1, Koichiro Wada, Tomoya Yamasaki
1Department of Urology, Kagawa Prefectural Central Hospital, 5-4-16, Ban-cho, Takamatsu, Kagawa, 760-8557, Japan.
Background:
Renal cell carcinoma (RCCs) is the most common malignancy of the kidney. When RCC progresses, it is known to form tumor thrombus in the renal vein and/or inferior vena cava. However, RCC does not normally form tumor thrombus in the ureter or renal pelvis.
Case Presentation:
A 43-year-old man presented to our department for the treatment of a renal tumor with asymptomatic gross hematuria. In a dynamic CT study, contrast enhancement revealed a tumor suspected to be RCC, but atypical finding as a tumor thrombus that filled the renal pelvis and the whole ureter was also observed. Nephroureterectomy was performed, and the tumor was diagnosed histopathologically as RCC.
Conclusion:
We report here a very rare case of RCC with a tumor thrombus in the whole ureter.
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