Table 2.
Clinicopathologic characteristics of 15 RCC tissue samples with sarcomatoid change
| Number of cases | 15 |
|---|---|
| Gender | |
| M | 7 |
| F | 8 |
| Median age (years) | 62 (38–76) |
| Race | |
| White | 11 |
| Hispanic | 3 |
| Asian | 1 |
| Histology | |
| Clear cell RCC | 11 |
| Papillary RCC | 3 |
| Clear cell papillary RCC | 1 |
| Mean sarcomatoid component (%) | 38 (5–90%) |
| Pathological T stage | |
| pT1 | 1 (6.6%) |
| pT3 | 13 (86.6%) |
| pT4 | 1 (6.6%) |
| Pathological N stage | |
| 0 | 5 (33.3%) |
| 1 | 5 (33.3%) |
| Not available | 5 (33.3%) |
| Metastasis at time of diagnosis | |
| 0 | 5 (33.3%) |
| 1 | 10 (66.6%) |
RCC: renal cell carcinoma