Thanks for all of the input. The seminal question I need to ask the ENT on the 27th is "If it isn't cancer, what is it and what do we do about it?"
I understand that PET and CT are not necessarily conclusive. When my ENT did the physical exam and the endoscope, he noted the fullness of the tongue base, which was soft. The CT picked up the two lumps at the tongue base, each of which is just under 1 cm. Wouldn't the PET have shown that these were metabolically active?
As was said in the posts, just a series of hurdles. I am going to do what is necessary to insure that we get to the bottom of this. While my initial elation is tempered by what I have read, my anxiety level has dropped, which is a good thing.
Thanks again for all the support and wisdom. I'll keep you posted.
Jeff