Welcome to Cancer Chat wendiwoo although I'm sorry to hear why it has brought you here.

I have had a look on our website and found some information about survival rates for lung cancer which you can read about here. I have also found a recent discussion on the forum where members are discussing family members and loved ones who have also been diagnosed with stage four lung cancer which may help you at this time. You can read more about their experiences here. Feel free to chat as I'm sure they would love to hear from you and help support you through this difficult time in your life.

Wishing you and your family all the best, 

Steph, Cancer Chat Moderator