Has anyone ever had a PET scan done? I have UC/UP and have already had a CT and MRI done, but will a PET SCAN show anything that could help b/c no treatment has been working for me. In two weeks I will be tested for Crohn's disease which is alittle scary... So would it be strange if I ask my GI doc to order me a PET Scan too? I'm cautious he'll ask why and I may not have an adequate response! You all know how doctors are! Any thoughts???? Thanks!