Materials and Methods Sixty-six patients (mean age: 63 years; range: 52–78 years) with PCa at initial staging (Gleason score ≥6; median prostate-specific antigen [PSA]: 10 ng/mL; range:1.7–152 ng/mL) prospectively underwent routine68Ga-PSMA-11 and18F-AlF-PSMA-11 PET/CT scanning with a 64-slice PET/CT scan with time-of-flight (TOF) correction. The gene discussed is KLK3; the disease is posterior cortical atrophy.