When is surgery indicated in the treatment of Wilms tumor?

Updated: Feb 01, 2019
  • Author: Tunc Ozan, MD; Chief Editor: Bradley Fields Schwartz, DO, FACS  more...
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Indications for primary surgical excision of a Wilms tumor include tumors confined to the kidney, extending beyond the kidney but not crossing the midline, and with or without vascular extension. Postchemotherapy excision of the tumor is indicated in patients with bilateral tumors, tumors that extended beyond the midline and have shrunk, and tumors with vascular extension. Surgery alone is not recommended for Wilms tumor, based on the results of the NWTSG-5 study. [1, 2]

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