68Ga-PSMA PET in the Renal Cell Carcinoma

This study is testing whether a special PET scan using a tracer called 68Ga-PSMA — typically used in prostate cancer — can also detect and map metastatic renal cell carcinoma (kidney cancer) that has spread. Researchers hope this scan can provide better staging information than standard CT alone. **You may be eligible if...** - You have been diagnosed with Stage III or IV renal cell carcinoma - Your CT scan has shown suspected cancer spread - You can have the PET/CT scan performed within 6 weeks of your kidney cancer diagnosis - You are over 18 years old **You may NOT be eligible if...** - You are 18 or younger - You cannot lie flat for the duration of the PET/CT scan - You have significant kidney problems or are on hemodialysis - You have had another cancer in the past 2 years Talk to your doctor to see if this trial is right for you.