@cathleen. Did you ask him what kind? I'm sorry that you are going through this. Why do you think that you have a problem with one side of your diaphragm?

Ask if you can get a PET scan. They inject one with a radioactive substance and then put one through a "CAT scan." The radioactive substance attaches itself to cancer cells only and lights up. I had one and nothing lit up. That scan takes longer than a regular "CAT scan."