How does a renal/kidney tumor cause flank pain?

Updated: Dec 11, 2019
  • Author: Bradley C Gill, MD, MS; Chief Editor: Bradley Fields Schwartz, DO, FACS  more...
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Answer

Answer

A renal tumor may cause flank pain due to rapid expansion and stretching of the renal capsule. Alternatively, it may impair renal blood flow via tumor thrombus within the renal vein. A urothelial tumor in the renal pelvis may cause pain secondary to ureteral obstruction.


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