I guess the Mojo worked! I got a quick message from his Iphone that said the surgery was a success, and they were able to remove the tumour. This was his only remaining kidney, so it looks as if they were able to save it, and he most likely will not need dialysis. I will let him know when I talk to him about the well wishes from the Fret. We have kept in touch even though I am in Ontario Canada, and he is in Pa. He is apparently on his way home tonight. Modern medicine is really amazing.
Thanks again guys from both of us.