Comparison of different prostate-cancer-specific ligands, PSMA-617 and PSMA-11 labeled with scandium-44, gallium-68, and lutetium-177, showed that the overall tissue distribution of [44Sc]-ScPSMA-617 resembled that of [177Lu]-LuPSMA-617 most closely, while the 68Ga-labeled ligands, in particular [68Ga]-GaPSMA-11, showed slightly different distribution kinetics [71]. Here, FOLH1 is linked to Familial prostate cancer.