Due to the exclusively high expression of PSMA by PCa, radionuclide-labelled PSMA small-molecule inhibitors have been reported as a promising radiopharmaceuticals for the clinical application to molecular imaging for PCa diagnosis9,10, one of which is HYNIC-Glu-Urea-A (99mTc-HYNIC-PSMA). The gene discussed is FOLH1; the disease is posterior cortical atrophy.