FOLH1 and posterior cortical atrophy: Recently, investigators from the National Center for Nuclear Research Radioisotopes Centre POLATOM exploiting the HYNIC approach developed a new radioligand, referred to as [99mTc][Tc]-PSMAT4 (PSMA-T4 = HYNIC-4Amc-LTrp-Lys-Urea-Glu), useful in the diagnosis of PCa in patients [111].