I think that one month later the area is still in repair, and as such would have a higher SUV. There have been tons of threads here about early PET's after treatment that were hot and there was no disease in the area. Remember that PERT's are not diagnositic of cancer. Lots of things from healing to infection, to damaged joints will light up a PET. By the by, a PET right after his surgery would have shown that area hot from the healing....this is not a baseline that would have helped anything.