PYLARIFY® is a diagnostic imaging agent used in conjunction with PET/CT scans to find tumors in the prostate, lymph nodes, bones, and other organs. PYLARIFY® uses a radioactive tracer called fluorine-18 that attaches to prostate-specific membrane antigen (PSMA), a protein found on the surface of most prostate cancer cells. By targeting PSMA, PYLARIFY® can give your doctor a clearer image and information on the location and the extent of the cancer.