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Open Access Highly Accessed Case report

Renal cell carcinoma with a tumor thrombus in the ureter: a case report

Osamu Fujita1, Koichiro Wada1*, Tomoya Yamasaki1, Daisuke Manabe1, Katsuji Takeda1 and Satoko Nakamura2

Author Affiliations

1 Department of Urology, Kagawa Prefectural Central Hospital, 5-4-16, Ban-cho, Takamatsu, Kagawa, 760-8557, Japan

2 Department of Pathology, Kagawa Prefectural Central Hospital, 5-4-16, Ban-cho, Takamatsu, Kagawa, 760-8557, Japan

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BMC Urology 2011, 11:16  doi:10.1186/1471-2490-11-16

Published: 1 August 2011

Abstract

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.