Specifically, the Gallium-68-prostate-specific-membrane-antigen-positron-emission-tomography (Ga68-PSMA-PET) scan is a highly sensitive imaging-test, which can detect tumors as small as 2.4 mm, and has shown promise in enhancing the detection and localization of prostate cancer (34, 35). This evidence concerns the gene FOLH1 and Familial prostate cancer.