Cheryl, my husband had similar surgery two years ago, followed by 33 treatments of radiation. After a PET/CT Scan, it was noted that there was some activity and of course I was frighten of any negative results, but it ended up being nothing to be alarmed about until the next scan. It is an anxious time but have positive thoughts, it is hard to live with the beast hanging over your head. I do know the feeling, take a deep breathe. I hope for good news for you and your husband.
Becky Ray