FOLH1 and renal cell carcinoma: PSMA ligands can be classified by route of excretion as mainly renal ([68Ga]Ga-PSMA-11, [68Ga]Ga-PSMA-HBED-CC) or hepatic ([18F]F-DCFPyL, [18F]F-PSMA-1007), which may be relevant theoretically in the diagnosis of RCC while assessing the primary tumor or recurrence/metastasis located in the kidney or in the liver (Figure 1).