Hello Again: We are at MGH in Boston and they have told us that his cancer is confined to the pancreas but it is not operable at this time. They have communicated hope that the chemo Folfiorinox will be approximately 4 mos and then radiation another 6 weeks, hopefully followed by surgery at the end of the year. The goal is to get the tumor to come away from the blood vessel so they can operate. I have read in the Mayo lit that PET imaging is important in guiding the therapies. I know they don't use PET at many other places. How important is it? Anne