Prostate-specific membrane antigen positron emission tomography-computed tomography (68Ga-PSMA-11 PET/CT) imaging has emerged as the latest technique offering high precision for identifying recurrent PC even with a low prostate-specific antigen (PSA) level.[1]18F has a longer half-life than 68Ga (110 minutes vs 68 minutes) with only a few limitations related to the generator capacity. The gene discussed is KLK3; the disease is pachyonychia congenita.