The PET scan shows the OTHER areas of concern. You know, the areas you don't know about yet. Take a step back and read some of these posts. How can everyone sit here and knock such a valuable diagnostic tool? I stand by my statement that false negatives are rare and, therfore, a PET is a good thing. Maybe those of you that have had a bad experience should look no further than the technition or radiologist. MSKCC, MDA, and JH all use them. Why is that? FYI, my H and N surgeon does not ask for the scans either, my MO and RO do. The H and N surgeon relies on physical examination, palpitation and COMPARISON CT scans for follow-up. When my PET revealed lung mets, I went to a Thoracic surgeon, not my H and N guy.