Hello, I have State 3a/b squamis cell lung cancer. I was diagnosed in October of 2019. I have undergone 30 radiation treatments & 6 chemo treatments. Now I am on #6 of immunotherapy. I am in Indiana at this time (I am a snowbird from Florida) & started with a new oncologist. He ran a PET scan to see my progress & the tumor has shrunk again since my February CT scan, which I am so thankful for. This time, however, it showed ground glass attenuation. The nurse practitioner said it was caused from the radiation & that it wasn't cancer. I have since called my radiation doctor in Florida to get her response to the results. I haven't heard from her yet. My question is, is this something I need to worry about?