Preclinical data from mice with LNCaP tumor xenografts have been quite promising and indicate that, compared to the widely used PSMA tracers [68Ga]Ga-PSMA-11 and [18F]F-JK-PSMA-7, [89Zr]Zr-PSMA-DFO exhibits a higher tumor-to-background ratio thanks to its remaining in the tumor tissue for a longer period after injection. Here, FOLH1 is linked to neoplasm.