KLK3 and posterior cortical atrophy: Currently, in agreement with literature data, the Se and Spe of PET/CT using 11C- or 18F-labeled Cho compounds, in restaging patients with PCa after RP, are greater in detecting metastatic lymph nodes, distant metastases, and local neoplastic recurrences when serum PSA values are >1 ng/mL, PSAdt is <6 months, and PSAve is >2 ng/mL/year [60, 61].