| ccRCC (n = 74) | AML.wovf (n = 31) | χ2/t | P |
---|---|---|---|---|
Age (years) | 54.61 ± 11.44 | 51.00 ± 10.71 | 1.508* | 0.135 |
Size (cm) | 2.80 ± 0.71 | 2.70 ± 0.62 | 0.666* | 0.507 |
Gender |  |  | 15.661 |  < 0.001 |
 Male | 48 (64.9) | 7 (22.6) |  |  |
 Female | 26 (35.1) | 24 (77.4) |  |  |
Location | Â | Â | 0.205 | 0.651 |
 Left kidney | 37 (50.0) | 17 (54.8) |  |  |
 Right kidney | 37 (50.0) | 14 (45.2) |  |  |
Growth pattern of tumor | Â | Â | 2.849 | 0.091 |
 Endophytic | 42 (56.8) | 12 (38.7) |  |  |
 Exophytic | 32 (43.2) | 19 (61.3) |  |  |
Pseudocapsule sign | Â | Â | 8.544 | 0.003 |
 Observed | 25 (33.8) | 2 (6.5) |  |  |
 Not observed | 49 (66.2) | 29 (93.5) |  |  |
Cystic degeneration | Â | Â | 7.812 | 0.005 |
 Observed | 36 (48.6) | 6 (19.4) |  |  |
 Not observed | 38 (51.4) | 25 (80.6) |  |  |
Angular interface | Â | Â | 11.693 | 0.001 |
 Observed | 9 (12.2) | 13 (41.9) |  |  |
 Not observed | 65 (87.8) | 18 (58.1) |  |  |