Yang et al. [16] reported the PCa detection rate was 12.4% in PSA < 4.0 ng/mL, 15.9% in 4.0–10.0 ng/mL, 34.1% in 10.0–20.0 ng/mL, 66.2% in 10.0–100.0 ng/mL, and 93.8% in over 100 ng/mL, respectively. The gene discussed is KLK3; the disease is posterior cortical atrophy.