A member asked:

Mom was diagnosed with stage 4 lung cancer in 6/12. they are unsure if it is small cell /non small cell. 1st chemo drug did nothing . life expectancy?

2 doctors weighed in across 2 answers

Sadly not long: The average 5 year survival for stage 4 lung cancer is near zero. The average survival is 1 year.

Answered 6/13/2014

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Curious. Not good.: Rarely tumor cells can mutate in a way that it is difficult to differentiate between types of cells. First i'd make sure they have done all possible studies on the tumor cells to define its type. If first line chemotherapy did nothing then it's possible that trying ctx aimed at other type of lung cancer could identify its type and help moreso. Survival more than a 6-1mos is unlikely if no ctx.

Answered 7/1/2016

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