Table 2 Pathology and radiology characteristics of unilocular cystic and solid RCC.
From: Comparison of survival between unilocular cystic and purely solid renal cell carcinoma
| Â | Unilocular cRCC | Solid RCC | P value |
|---|---|---|---|
n = 74 | n = 144 | ||
Fuhrman grade |  |  | P < 0.001 |
 G1 | 33 (44.6%) | 8 (5.6%) |  |
 G2 | 39 (52.7%) | 84 (58.3%) |  |
 G3 | 2 (2.7%) | 45 (31.3%) |  |
 G4 | / | 7 (4.9%) |  |
Metastasis |  |  | P = 0.501 |
 N0M0 | 71 (95.9%) | 135 (93.8%) |  |
 N + and M0 | 3 (4.1%) | 9 (6.2%) |  |
pT |  |  | P = 0.006 |
 1 | 66 (89.2%) | 113 (78.5%) |  |
 2 | 8 (10.8%) | 10 (6.9%) |  |
 3 | / | 20 (13.9%) |  |
 4 | / | 1 (0.7%) |  |
Histology |  |  | P = 0.021 |
 Clear cell | 64 (86.4%) | 137 (95.1%) |  |
 Papillary | 9 (12.2%) | 4 (2.8%) |  |
 Chromophobe | 1 (1.4%) | 3 (2.1%) |  |
Papillary subtype |  |  | P = 0.217 |
 Type I | 7 (78%) | 1 (25%) |  |
 Type II | 2 (22%) | 3 (75%) |  |
 Diameter of tumor mean ± SD, cm | 4.45 ± 1.10 | 4.55 ± 0.96 | P = 0.521 |
 Volume mean ± SD, cm3 | 100.63 ± 74.02 | 105.88 ± 67.20 | P = 0.599 |
R.E.N.A.L. score |  |  | P = 0.955 |
 < 7 | 3 (4.1%) | 5 (3.5%) |  |
 7 ~ 9 | 25 (33.8%) | 51 (35.4%) |  |
 10 ~ 12 | 46 (62.2%) | 88 (61.1%) |  |
Bosniak classification | Â | Â | Â |
 I | / | / |  |
 II | / | / |  |
 II F | 2 (2.7%) | / |  |
 III | 26 (35.1%) | / |  |
 IV | 46 (62.2%) | / |  |
