Hi Ron,
You face a challenging decision. I would urge you to get second (and if necessary, third) opinion from comprehensive cancer centers.

Also, if you do a search on this forum for occult or micro metastis, you will find a number of posts about the possibility of undetected cancer cells that have escaped the surgery but do not show up with any imaging technology. If I recall accurately what Brian has said, I think that some 25-30% of oral cancers can metastize this way.

For what it's worth, and this information may not be transferrable, I had a T1 tumor and while discussing the possibilities of radiation therapy with my ENT surgeon, he said that one always radiates a T2 tumor.

Somewhere on the forum, somebody posted the url of a site that described the recommended treatment protocols for each stage of oral cancer. I was unable to find it to include in this post but hopefully someone else on the board knows where it is and can re-post.

Best wishes and good luck with your decision and treatment. - Sheldon