Whereas ccRCC specimen showed a diffuse (24/30, 80%) and mostly a strong (25/30, 83%) PSMA staining pattern, in pRCC specimen no diffuse PMSA expression and only focal expression (11/15, 73%) with minimal strong expression (5/15, 33%) was identified. This evidence concerns the gene FOLH1 and nonpapillary renal cell carcinoma.