KLK3 and posterior cortical atrophy: The age, tPSA, fPSAD, PSAD, PSADadj, and positive MRI percentages were significantly higher in the PCa group than in the BPH group (p<0.001), whereas f/t PSA and prostate volume were significantly lower in the PCa group than in the BPH group (p<0.001) (Figure 1).