I am so sorry to hear about this diagnosis @donnac51. The first thing I would do is seek out a second opinion from a large referral hospital/cancer center. Perhaps they have dealt with immunotherapy in a transplant patient before. Has there been a diagnosis of what type of cancer is in his lungs? A primary lung cancer or metastatic disease from his SCC? I have metastatic SCC, for the past 11 years, and most recently completed two years on an immunotherapy drug which caused total resolution of the last metastasis in kidney and lymph nodes. It was a very tolerable treatment. I would guess that while neither approach sounds positive, only the choice of immunotherapy offers the chance to prolong his life. Again, I am a big advocate of second opinions and nowadays that can be done by video visit in many places. Good luck to you both.