My husband has metastatic lung cancer in his lungs and liver. Like you, I'm the researcher and passer on of information. I saw the pet scan results showing that it had spread into his liver before seeing the doctor, but just one hour before an appointment with radiologist. I let the doctor give the news. Chemo and radiation did nothing for his liver metastases. He will now undergo internal radiation. From what I understand, simple procedure with no real side effects. I don't know if Medicare insists on chemo and immunotherapy first but if we had known about internal radiation first, we would have chosen it. Side effects from immunotherapy (Opdivo and Yervoy combo) have been intense. He developed colitis and may have to discontinue immuno altogether. The doctor is considering putting him back on chemo but a different chemo treatment. The side effects of it are pretty severe so I'm hoping we can come up with a different plan.