Although the median PSA level was higher in the PCa+NIH IV prostatitis group, the difference between the groups was not statistically significant (p=0.67).The median PV was 35 (15–98) mL in the PCa group and 40 (20–90) mL in the PCa+NIH IV prostatitis group (p=0.03). The gene discussed is KLK3; the disease is posterior cortical atrophy.