KLK3 and posterior cortical atrophy: Accordingly, this study aimed to investigate the effectiveness of radiomic features extracted from bpMRI in the identification of PCa and to develop and validate a radiomic nomogram for PCa diagnosis in a subgroup of patients with PI-RADS ≤3 lesions and PSA serum levels of 4-10 ng/mL, providing a practical tool for accurate diagnosis and personalized treatment.