KLK3 and cancer: Tumor markers were evaluated: B2-microglobulin 2.86 mg/L; lactate dehydrogenase (LDH) 492 IU/L; carcinoembryonic antigen (CEA) 2.68 ng/mL; cancer antigen 19-9 (CA19-9) 23.13 IU/mL; total prostate-specific antigen (PSA) 0.479 ng/mL.