So glad you found this site! You've come to the best place for the latest information and help from knowledgeable people who been where you are. It's good you are making a list of questions for when your wife and you meet with the new surgeon. The main page of the Oral Cancer Foundation (see upper left corner) has several links to all kinds of information, which can help in putting questions together for your doctor or or for anyone here. Re CAT scans, if you go to the search box upper right of the main OCF page, and put in "CAT scans" you will see this:
http://www.oralcancerfoundation.org/archive_boards/treatment/CT_Scan_Questions.htm

which has lots of information on CAT scans and it will give you and idea of what to expect. Hope everything goes well. Let us know what happens.

Anne-Marie
CG to son, Paul (age 33, non-smoker) SCC Stage 2, Surgery 9/21/06, 1/6 tongue Rt.side removed, +48 lymph nodes neck. IMRTx28 completed 12/19/06. CT scan 7/8/10 Cancer-free! ("spot" on lung from scar tissue related to Pneumonia.)