All images were acquired using the same Signa 3 Tesla PET/MRI scanner, but since this study is part of a single-centre prospective trial that is still ongoing at IRCCS San Raffaele Scientific Institute, and it was specifically focused on the use of 68Ga-PSMA and 68Ga-DOTA-RM2 PET in recurrent PCa, MRI data were not considered for the purpose of this work and therefore were not included in the analysis. This evidence concerns the gene FOLH1 and posterior cortical atrophy.