Prostate Specific Membrane Antigen PET/CT Imaging in PSMA-Related Disease Patients

This study is evaluating PSMA PET/CT scans — an advanced imaging technique that uses a radioactive tracer to light up prostate-specific membrane antigen (PSMA) on cancer cells — in patients with various PSMA-related diseases. The scan can detect cancer spread with greater accuracy than conventional imaging in prostate cancer and certain other cancers. **You may be eligible if...** - You are an adult (18 or older) - You have a suspected, newly diagnosed, or previously treated cancer that may express PSMA - You are already scheduled for a PSMA PET/CT scan as part of your clinical care - You (or your parent/guardian) can provide informed consent **You may NOT be eligible if...** - You are not already scheduled for this scan as part of your care (this study enrolls patients who would have the scan anyway) - You are unable to consent Talk to your doctor to see if this trial is right for you.