lung cancer started out 3 cm x 5 cm now at a 40 spits blood frequently and has quite bit of back pain. This was found 2012 when found a mass in left neck. Treatment of neck consisted of 35 radiation and few chemos. Then surgery removed 35 lymphnodes and juggler . Needle biopsy was not any help because of not getting enough tissue to check. Being 77 years of age he will not do any thing else. We see him getting slower and slower although able to be up and can care for him self. He is also diabetic. What would a fair estimate of life expectancy be.