Hi Katie, welcome. Many of us start this ride by seeing lots of doctors, and having lots of tests, PFTs, bone scans, radialogists, pulmonologists, onocologists etc. Depending on where the tumor or tumors are, how good your PFTs are, etc a plan is put in place. For me the best plan was chemo and radiation to shrink the tumor then surgery , and more chemo. That was 7 yrs ago, and I continue to keep my companion NED ( No evidence of disease) . Keep us posted what the plan is for your Dad. Donna G