In this study clear cell renal cell carcinoma showed the most intense and extensive expression of PSMA (Figure 5), followed by chromophobe renal cell carcinoma (combined score 5), whereas papillary renal cell carcinoma showed the least in both extent and intensity of PSMA expression (combined score 0–2), as shown in previous studies [32,40,51]. The gene discussed is FOLH1; the disease is papillary renal cell carcinoma.