His past medical history is notable for elevated prostate-specific antigen (PSA) on outpatient labs, with subsequent magnetic resonance imaging (MRI) of prostate revealing 12-millimeter (mm) lesion at the left lateral transitional zone and enlarged prostate which was assessed with the following cystoscopy that revealed bladder cancer throughout the bladder wall, which for the patient underwent transurethral resection of bladder tumor. Here, KLK3 is linked to urinary bladder carcinoma.