FOLH1 and posterior cortical atrophy: The glutamate carboxypeptidase type 2 PSMA is overexpressed on the cell surface of PCa cells specially in advanced-stage and castration-resistant metastatic PCa.18The most widely studied agent based on low-molecular-weight urea type structures is the68Ga-labeled PSMA inhibitor Glu-NH-CO-NH-Lys(Ahx)-HBED-CC.