Table I.
Clinicopathological characteristics of the 406 patients with ccRCC.
| Characteristics | No. |
|---|---|
| Median age, years (range) | 62 (27–85) |
| Sex | |
| Male | 309 |
| Female | 97 |
| Side | |
| Left | 192 |
| Right | 214 |
| Nephrectomy type | |
| Radical | 268 |
| Partial | 138 |
| Median postoperative follow-up, months (range) | 59 (3–137) |
| Pathological T stage | |
| T1a | 272 |
| T1b | 76 |
| T2a | 12 |
| T2b | 3 |
| T3a | 16 |
| T3b | 26 |
| T4 | 1 |
| Tumor size, median mm (range) | 32 (9–250) |
| Fuhrman grade | |
| 1 | 3 |
| 2 | 343 |
| 3 | 38 |
| 4 | 22 |
| ISUP grade | |
| 1 | 4 |
| 2 | 227 |
| 3 | 153 |
| 4 | 22 |
| Microvascular invasion | |
| Positive | 77 |
| Negative | 329 |
| Tumor necrosis | |
| Positive | 43 |
| Negative | 363 |
| Sarcomatoid differentiation | |
| Positive | 9 |
| Negative | 397 |
| Rhabdoid differentiation | |
| Positive | 17 |
| Negative | 389 |
ccRCC, clear cell renal cell carcinoma; ISUP, International Society of Urological Pathology.