FOLH1 and prostate carcinoma: 68Ga-PSMA-11 PET/CT uptake by prostate carcinoma proved significantly higher in Black South-Africans when compared to White South-Africans, especially when normalized for Gleason score, explaining why 98% of the primary prostate carcinoma where readily identified on 68Ga-PSMA-11 PET/CT images, including patients with Gleason score 6 tumors.