PET scans performed with tumor-bearing mice injected with 152Tb-PSMA-617 revealed pharmacokinetic properties as expected: high activity uptake was observed in PSMA-positive PC-3 PIP tumors, but negligible accumulation in PSMA-negative PC-3 flu tumors, as previously also shown with 177Lu-PSMA-617 [15]. This evidence concerns the gene FOLH1 and neoplasm.