Considering the comparison of 68Ga-PSMA and the PET/CT with another 18F-labeled radiotracer, named [18F]rhPSMA-7 (18F-rhPSMA-7), a study by Kroenke et al. showed similar tumor positivity rates and SUVmax values for primary PC and biochemical recurrence of PC [7,14]. This evidence concerns the gene FOLH1 and pachyonychia congenita.