I'm so sorry to hear about your mom's cancer. In my dad's case he started out as a IIIA. That was almost 2 years ago. He underwent chemo/radiation and he was able to have surgery. Almost 1 year after his initial diagnosis, it spread to his bone, then to his lungs. Once it was in the bone it was classified as Stage IV. He went on strong during all of this, he is a fighter. Keep positive thoughts and be strong for your family. Lung cancer has a grim outcome, it gets ugly, I suggest you get all of the info you can from books, doctors, etc. It really helps to know what to expect. Like my 9 year old daughter says, miracles do happen, we pray every day for one, but in reality, we are preparing for dad's journey to end. He is there now...the doctors said he has about 2 months left. We called hospice, they are wonderful with dealing with the patients and caregivers too. They know how to comfort, control pain, and even put a smile on dad's face. Just take one day at a time, this will be a long journey for your family. And please remember I will keep you and your family in my prayers.