I thought I would just share a bit of good news. As part of the pre surgery prep, I had to have a bone scan and of course chest X-ray. The Doctor doing the surgery just called to let me know that both were clear and normal. I have to admit I was nervous about the bone scan, but feel much better now. He told me that on the bone scan, they could see the kidney and the mass, but everything else around it looked clear and normal in the renal tract, so again, he feels pretty confident that its exactly what they first thought and that the surgery should go as planned.
Thanks again all of you - what an amazing group of people this board has.