A properly administered and interpreted PET scan is an extremely valuable diagnostic tool. I'm going to go out on a limb here, but I imagine the scans are good, just read wrong. All scans are not going to be perfect, but if the PET scan causes you doctor to take a closer look, where is the problem? Not wanting a scan for fear of a false positive seems a little short sighted, on the part of the patient and the doctor. The big plus on the PET is it's ability to locate distant metastases, not diagnosing a reoccurrence in the original surgical site. With all the worry on here about having a reoccurrence you would think all tests would be welcome. A false negative on a PET is almost unheard of. Darrell, was there a high uptake to the lung area? Were they cocentrated spots? Were you a smoker, and if so, is that why they doubt the test results?