Renal Cell Carcinoma Modified Staging System

Does the patient have a renal cell carcinoma?

Is the tumor confined to within the kidney (limited by renal capsule)?

Does the tumor invade through the renal capsule into the perinephric fat?

Does the tumor penetrate through Gerota's fascia?

Is there invasion into the ipsilateral adrenal gland?

Is there invasion into the renal vein?

Is there invasion into the inferior vena cava?

Is there invasion by direct extension of adjacent organs other than the ipsilateral adrenal gland?

Number of regional lymph nodes showing metastases

Are any distant metastases present?