pT1 SUBSTAGING IN RENAL CELL CARCINOMA: VALIDATION OF THE 2002 TNM STAGING MODIFICATION OF MALIGNANT RENAL EPITHELIAL TUMORS

Substaging RCC into pT1a and pT1b yields prognostically important information, validating the 2002 TNM modification for malignant renal epithelial malignancies. The substratification of pT1 is particularly useful in tumors with CRCC histology.