demonstrated molecular PSMA expression in all PET-positive lesions, with no correlation between histopathologic findings (extent and intensity of PSMA expression) and PET/CT parameters (SUVmax, SUVmean, lesion-to-muscle ratio) in patients with metastatic ccRCC; however, this lack of correlation was because most lung metastases showed low tracer uptake (37). This evidence concerns the gene FOLH1 and nonpapillary renal cell carcinoma.