Ahh, the waiting. You do know that is the very worst part of it don't you? If I were rich and powerful, after banishing oral cancer, of course, I would straighten out your poor wife's VISA situation. That is just rotten! Now, no more talk about the surgery because that will go just fine. Afterwards, I would give some serious thought to the additional radiation on the other side. Because this cancer frequently jumps sides, that seems like a pretty smart idea to me, but then I am far more cautious than I used to be (grin). Please know that half a world away, you are in the thoughts of many of us. You will go into surgery with many, many good wishes, which are not subject to the usual physical laws of time and space. It will all be okay.
Joanna