TABLE 4.
Summary Table Delineating Helpful Markers in Differential Diagnosis of Renal Tumors
| Positive Markers | Negative Markers | |
|---|---|---|
| Clear cell RCC | vim, keratin, EMA, CD10, RCCm Pax 2/8, CAIX | CK7, Ksp-cadherin, parvalbumin |
| Papillary RCC | Keratin, CK7, AMACR, RCCm | CD117, Ksp-cadherin, parvalbumin, WT1 |
| Chromophobe RCC | E-cadherin, Ksp-cadherin, CD117, EMA, CK, CK7 | vim, CAIX, and AMACR |
| Collecting duct | EMA, p63, CK7, HMWCK, Pax 2, Pax 8 | CD10, RCCm, and CK20 |
| Clear cell papillary RCC | CK7, Pax 2, Pax 8 | AMACR, RCCm |
| Translocation RCC | TFE3, TFEB, CD10, RCCm | CK (or weak) |
| Oncocytoma | Ksp-cadherin, CD117, parvalbumin, S100A1 | CK7, Moc31, EpCam, EABA, CD82 |
| Metanephric adenoma | S100, WT1, CD57 | AMACR, RCCm |
| RCC with sarcomatoid features | CK7, Pax 2/Pax 8, CD10, vim, and AMACR | |
| Angiomyolipoma | HMB45, melan-A, and SMA | CK, CD10, RCCm, Pax 2, Pax 8 |
| Urothelial carcinoma | CK, CK7, CK20, p63, thrombomodulin, uroplakin III | RCCm, CD10, Pax 2, Pax 8 |
EABA indicates endogenous avidin-binding activity; vim, vimentin.