@mamajite I had the Mayo Complete Solid Tumor Panel on my first surgery, but they never mentioned anything I could treat with immunotherapy. I have treated 5 nodules so far (2 VAT surgeries, photon SBRT on 2 nodules, and Proton SBRT on a nodule. I hope that takes care of me for awhile. I also have pulmonary fibrosis so immunotherapy, etc. can cause an inflammation, and I am already on oxygen. My treatment options are limited. Have you done a lot of radiation? With multifocal one has serial CT scans and PET scans and possibly radiation treatments. They discussed spacing out my CT scans in case I need one for other lung issues. Now if I need testing for something I look at the radiation involved and if it is the best option. Ordering medical person needs to consider one's complete medical history first.