Hi There. I have had a CT/Pet Scan done in April and had my results a couple of weeks ago. My cancer is back and has spread to my liver. I have to have chemo now and looking into a clinical trial. I have had to some research on some things because my doctors don't really know how to treat my cancer because it is so rare. I am getting copies of my records and will try to see what the mayo clinic can do for me. I am thinking positive about all this because I am a fighter. I think your brother should demand a test to make sure that it isn't cancer coming back. Hope all is well. He shouldn't ignore pains.