FOLH1 and cancer: Positron emission tomography (PET) combined with computed tomography (CT) or MRI using several radiotracers targeting choline (e.g., [18F]fluoromethylcholine and [11C]choline), prostate-specific membrane antigen-PSMA (labeled with 68Ga or 18F), and [18F]Fluciclovine can help to localize suspicious lesions in the prostate gland (PG), providing a valuable tool for the detection of cancer and thus to guide biopsies and treatment.