KLK3 and posterior cortical atrophy: Between 2007 and 2011, a total of 94 patients with PCa median age 63 years; (range 49–77) met the selection criteria and were enrolled in the study: patients with a serum PSA level > 4ng/ml ranging from 4.4 to 39 ng/ml and mean value of 9.8 ng/ml.