There are always grey areas, but according to my oncologist, Dr. Szewczyk, my PET scans look very good. The material injected into me lights up when there is above normal metabolic activity. There were some areas that were lit up on the side I didn't have cancer on, basically lymph nodes that have had some metabolic activity but weren't enlarged. She said it is most likely nothing to be concerned about (famous last words), but Dr. Rothman will probably want to do an endoscopy to get a better look. Which probably means another trip to the hospital. Which sucks.