Table 1.
Clinical and pathological parameters of the included patient specimens
| N | [%] | |
|---|---|---|
| Gender | ||
| Male | 23 | 65.71 |
| Female | 12 | 34.29 |
| Total | 35 | |
| Median age at surgery (years) | 66 | Range 47–87 |
| Histology⃰ | ||
| ccRCC | 22 | 62.85 |
| pRCC | 6 | 17.14 |
| chRCC | 4 | 11.34 |
| Oncocytoma | 1 | 2.86 |
| Metastases (ccRCC) | 2 | 5.71 |
| Total | 35 | |
| pT stage** | ||
| pT1 | 16 | 50.0 |
| pT2 | 1 | 3.12 |
| pT3 | 15 | 46.87 |
| Total | 32 | |
| Grade*** | ||
| 1 | 2 | 7.14 |
| 2 | 13 | 46.43 |
| 3 | 11 | 39.29 |
| 4 | 2 | 7.14 |
| Total | 28 | |
*The histology was assessed according to the 2016 WHO Classification of tumors of the urinary system
**The TNM status was assessed to the WHO/UICC Classification system and the tumor grade according to the WHO/ISUP Classification. The TNM classification was not used for oncocytoma and the metastases of ccRCC
***The tumor grade was not assessed for chRCC, the metastases of ccRCC and the oncocytoma