KLK3 and posterior cortical atrophy: • PCa vs. HC: miR-107 and miR-574-3p were present at significantly higher concentrations.• Both 2 miRs appeared more accurate than PCA3 normalized to urinary PSA (AUC: miR-107 = 0.74; miR-574-3p = 0.66; PCA3 = 0.61).