I haven't had much opportunity to interact with Rick, but his posts have been invaluable, especially in the DIY section.
A family member - whom I love dearly - went through a tough fight with lung cancer last year. She beat it.
Then it came back.
And she beat it again. We think she's won. I hope so.
A tough prognosis is not the end. Fight it, and fight it with everything you have. Forget the odds, take it on and do everything you can.
I'm pulling for you. Best wishes and remember that you have a whole community on your side. You need to win this fight and come out stronger on the other side.