My 75 yr old mom was just recently diagnosed with stage 4 NSCLC. It has gone to her brain but they were able remove those legions with surgery. Dr is waiting for her IQLung results to come back as well as waiting for him to schedule a PET scan to see if it has traveled anywhere else. This waiting is killing me. My mom is my best friend and nobody expected her to get cancer. I'm so afraid of losing her.