Histopathological features of the analyzed samples from nephrectomies
| Variables | Primary tumor | Number of patients (%) |
|---|---|---|
| T size | ≤ 4 cm | 3 (12) |
| > 4 cm but ≤ 7 cm | 12 (48) | |
| > 7 cm but ≤ 10 cm | 6 (24) | |
| > 10 cm | 4 (16) | |
| Histotype | Clear cell | 24 (96) |
| Sarcomatoid | 0 (0) | |
| Others | 1 (4) | |
| ISUP grade | G1 | 0 (0) |
| G2 | 5 (20) | |
| G3 | 14 (56) | |
| G4 | 6 (24) | |
| Vascular invasion | Yes | 15 (60) |
| No | 10 (40) | |
| Necrosis | 0 | 9 (36) |
| 1 (+) | 5 (20) | |
| 2 (++) | 7 (28) | |
| 3 (+++) | 4 (16) |