Table 4

TLPN RLPN P No. pts 66 87   Malignant tumor (%) 73 70 0.45  RCC 46 43    Papillary 27 23    Chromophobe 0 3    Other 0 1   Fuhrman grade (%)        1 15 13 0.87  2 67 64 0.78  3 18 23 0.67 Benign tumor (%) 27 30 0.77  Angiomyolipoma 14 17    Oncocytoma 8 9    Other 5 4   Positive margins (%) 5 3 0.45