Cancer Institute A national cancer institute
designated cancer center

Kidney Cancer Staging

The stage of your cancer is the terminology doctors use to communicate the size of a tumor and where and how deeply it has spread. When you are diagnosed with kidney cancer, the doctor needs to know the type of kidney cancer you have and the stage the cancer is in.

The following system is used to stage your kidney cancer:

TX Primary tumor cannot be assessed
T0 No evidence of primary tumor
T1 Tumor 7 cm in greatest dimension, limited to the kidney
T1a Tumor 4 cm in greatest dimension, limited to the kidney
T1b Tumor >4 cm but not >7 cm in greatest dimension, limited to the kidney
T2 Tumor >7 cm in greatest dimension, limited to the kidney
T2a Tumor >7 cm but 10 cm in greatest dimension, limited to the kidney.
T2b Tumor >10 cm, limited to the kidney
T3 Tumor extends into major veins or perinephric tissues, but not into the ipsilateral adrenal gland and not beyond the connective tissue covering of the kidney, known as Gerota fascia
T3a Tumor grossly extends into the renal vein or its segmental (muscle-containing) branches, or tumor invades perirenal and/or renal sinus fat but not beyond Gerota fascia
T3b Tumor grossly extends into the vena cava below the diaphragm
T3c Tumor grossly extends into the vena cava above the diaphragm or invades the wall of the vena cava
T4 Tumor invades beyond Gerota fascia (including contiguous extension into the ipsilateral adrenal gland)

 

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