David had a hot spot on the PET scan 6 weeks post treatment. The nurse kept assuring us not to be alarmed...btu that the doc would need to biospy it to be ont he safe side. Since rads continue to work for 4-6 weeks (or more) after treatment, it is not unusual for a hot spot to show up on a PET scan at 6 weeks. He had the biopsy and it was clean...btu while they ahd him out, they went ahead and scoped his throat since he was complaining about not being able to swallow very well. I was havig to cut his pilsl in quarter and they were still stickign in his throat (these pills were the size of an aspirin, so a quarter fo a pill was TINY!) Sure enough, it turned out taht the scar tissue from the rads and tumor had pushed backwards from his larynx and caused his esophgus to collapse. They were able to dilate his esophagus and now, 16 months later, he hasn't had another problem.

Anyway, I don't know if this will help you any, but I thought maybe hearing that someone else had some anomalies post treatment that turned out to be benign might make you feel a little better.