Rick , if it would make you more comfortable to have the scan, then do it. You do not want to be saying , "I wish I had or I should have done".
Pete has had a few since he finished treatment, and I can tell you, it feels good to get the "all clear". I know there is a chance of a false positive, my opinion, better safe than sorry.
Best wishes
Marica

Caregiver to husband Pete, Dx 4/03 SCC Base of Tongue Stage IV. Chemo /Rad no surgery. Treatment finished 8/03. Doing great!