What is the Robson staging system for renal cell carcinoma (RCC)?

Updated: May 21, 2019
  • Author: Kush Sachdeva, MD; Chief Editor: E Jason Abel, MD  more...
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Answer

The Robson modification of the Flocks and Kadesky system is uncomplicated and is commonly used in clinical practice. This system was designed to correlate stage at presentation with prognosis and is as follows:

  • Stage I – Tumor confined within capsule of kidney

  • Stage II – Tumor invading perinephric fat but still contained within the Gerota fascia

  • Stage III – Tumor invading the renal vein or inferior vena cava (A), regional lymph node involvement (B), or both (C)

  • Stage IV – Tumor invading adjacent viscera (excluding ipsilateral adrenal) or distant metastases


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