Prostate-specific membrane antigen (PSMA) is a transmembrane protein with significantly increased expression in PCa cells or metastasis.4In recent years, positron emission tomography/computed tomography (PET/CT) with gallium-68-labeled PSMA (68Ga-PSMA) has become the standard evaluation method routinely used to detect PCa and determine stage, response to treatment, and biochemical recurrence.5Additionally, maximum standardized uptake value (SUVmax) obtained from68Ga-PSMA PET/CT is a semiquantitative parameter that has gained widespread use for tumor evaluations. The gene discussed is FOLH1; the disease is posterior cortical atrophy.