Breast Cancer PSMA PET

This study is testing a specialized type of PET scan that uses a tracer called PSMA — typically used to image prostate cancer — to see if it can also detect and characterize metastatic triple-negative breast cancer (TNBC). TNBC is an aggressive form of breast cancer that lacks the three most common receptors, making it harder to treat. **You may be eligible if...** - You are a female, 18 or older - You have been diagnosed with distantly metastatic triple-negative breast cancer (TNBC) - Your initial biopsy confirmed the TNBC diagnosis - Your metastatic lesions are FDG-positive on a standard PET/CT scan done in this study **You may NOT be eligible if...** - You have another active cancer - You are unable to tolerate PET/CT imaging - You are pregnant or breastfeeding - Your lesions do not show up on the initial FDG PET scan Talk to your doctor to see if this trial is right for you.