Table 4 Characteristics of the tumor pseudo-capsule (PC) in RCC
N | PC present(%) | PC invasion(%) | Mean Thickness (mm) (SD) | |
|---|---|---|---|---|
Histologic Subtype | ||||
Clear cell | 44 | 44(100) | 4(9.1) | 0.8(0.7) |
Papillary | 3 | 3(100) | 1(33.3) | 0.6(0.3) |
Chromophobe | 6 | 2(33.3) | 0(0) | 0.7(0.2) |
Fuhrman grade | ||||
1–2 | 42 | 38(90.5) | 2(5.3) | 0.7(0.3) |
3–4 | 11 | 11(100) | 3(27.3) | 0.9(1.2) |
pT classification | ||||
pT1 | 35 | 35(100) | 3(8.6) | 0.7(0.3) |
1a | 19 | 19(100) | 3(15.8) | |
1b | 16 | 16(100) | 0(0) | |
≥ pT2 | 18 | 14(77.8) | 2(11.1) | 1.0(1.1) |
2a | 16 | 12(75) | 1(8.3) | |
2b | 1 | 1(100) | 0(0) | |
3a | 1 | 1(100) | 1(100) | |
Overall | 53 | 49(92.5) | 5(10.2) | 0.7(0.6) |