Susan

You have gotten great advice from everyone here as well as very pratical suggestions. I agree with all of them. Again, relax, I was Stage IV (there is no stage V) advanced cancer and I'm still here. As Eileen suggested, ask in advance for a copy of his MRI and Petscan (they had to be put on a DVD not a CD for me, although the CT fit on a CD). Then you can take them to Sloan or wherever. The doctors can read them independently so you won't have to get new ones for each opinion. I sometimes had to wait a day to get a copy made.
The MRI and PetScan should provide additional information on the size and location of any tumors or cancer. Don't worry about getting more biopsies at this time. But do NOT schedule any surgery, nor any chemo nor radiation until you have gotten a second opinion instead of this doctor's.
Keep the faith
Charm