Aim This article evaluates whether parameters derived from the gallium-68-labeled prostate-specific membrane antigen (68Ga-PSMA) positron emission tomography/computed tomography (PET/CT) imaging studies of primary prostate cancer (PCa) lesions were associated with Gleason score (GS), D'Amico risk class, Candiolo nomograms, and the metastatic status of the disease. This evidence concerns the gene FOLH1 and Familial prostate cancer.