AP N Size (cm)     Gender Age
      Exophytic Endoexophytic M F  
RCC clear cell 17 (41%) 2.7 ± 0.7 16 1 12 5 54.7 ± 10.5
RCC Papillary 10 (24%) 2.2 ± 0.4 9 1 8 2 58.5 ± 15.2
Oncocytoma 5 (12%) 2.8 ± 0.4 5 - 3 2 59.5 ± 13.4
Angiomyolypoma 2 (6%) 5.0 2 -   2 70 ± 8
Inconclusive 7 (17%) 3.0 6 1 2 5 58.3 ± 14
Total 41 2.8 ± 0.8     25 16 58.9 ± 11.8
Table 2: Pathologic, demographic and anatomic tumor characteristics.