Hi there I,ve had Hodgkins 3B,NS i'm now in remission for 18mos,my oncologist does a routine CT scan and blood work every 6mos,after 5yrs if everything looks good he'll just do blood work,last blood test everything was normal,but the CT scan picked-up some slighty increased lymphadenopathy in my abdomen,he immediatedly ordered a PET scan to see any FDG uptake was present,it came back negative,so it goes to show blood work does not tell all-Vinnie