What is life expectancy of lung cancer patient with bone metastasis age 72 male. had quit smoking 25 years back.

Six months: Bone mets mean stage IV cancer. Life expectancy is related to how rapidly the cancer is growing and what organs it is affecting. I've seen a patient with a solitary bone met appearing two years after the primary, treated with radiation, who lived five years. I've seen others who died rapidly. Six months would be a reasonable approximation, but with a significant range.

Depends: In general stage 4 lung cancer carries a poor prognosis. Without treatment such patients tend to survive 6-12 months although some less and some more. With treatment the survival rates increase to 18-20months with a good response. A frank discussion with the patient should to determine goals is appropriate.

See below: It depends on several factors; pathology molecular status (egfr/alk) and other medical problems. Discuss with your oncologist.