By contrast, patients with evanescent carcinoma do not have any signs of prostate intraepithelial neoplasia (0%), had considerably lower PSA levels (12.2 ± 6.1), cancer was significantly less aggressive (6.0 ± 0.0), and did not have any evidence of clinical or pathological changes in the prostate (Table 1). Here, KLK3 is linked to cancer.