Table 1.
Immunohistochemical results of oncocytic renal cell tumors.
| Studied markers | Immunoexpression | CCRCC No. (%) | ChRCC No. (%) | Oncocytoma No. (%) | Sensitivity (%) | Speciflty(%) |
|---|---|---|---|---|---|---|
| Vimentin | 0 | — | 7 (100) | 12 (100) | ||
| 1+ | — | — | — | 100 | 100 | |
| 2+ | — | — | — | |||
| 3+ | 36 (100) | — | — | |||
| CD117 | 0 | 36 (100) | 1 (14.2) | 1 (8.3) | ||
| 1+ | — | — | — | 89.5 | 100 | |
| 2+ | — | — | 1 (8.3) | |||
| 3+ | — | 6 (85.8) | 10 (83.4) | |||
| CK7 | 0 | 31 (86.1) | 1 (14.2) | 8 (66.6) | ||
| 1+ | 2 (5.6) | — | 2 (16.7) | 85.7 | 89.6 | |
| 2+ | 3 (8.3) | — | 2 (16.7) | |||
| 3+ | — | 6 (85.8) | — | |||
| Cav-1 | 0 | 8 (22.3) | — | 11 (91.7) | 100 | 91.7 |
| 1+ | — | — | 1 (8.3) | |||
| 2+ | 28 (77.7) | 7 (100) | — | |||
| Total (N = 55) | 36 (65.5) | 7 (12.7) | 12 (21.8) |
Cav-1=caveolin-1; CCRCC=clear cell renal cell carcinoma; ChRCC=chromophobe renal cell carcinoma; CK7=cytokeratin-7.