Julie,
I think docs give us the worst scenarios to prepare us, but also don't rule out the fact that miracles DO happen--back to the 'everyone is different, ignore the statistics' bit.
In my case, I was offered the 'palliative' chemo route and given 3 'scenarios'

1.--Good result is it halts the growth/spread.
2.--Best--it shrinks the tumours
3.--Miracle--it makes em go away!

In my case, it has halted the growth, for now, the treatment itself wasn't too horrendous, and it's made me focus on the 'enjoy one day at a time' bit, for which I've been very grateful.

I may be offered radiation to the jaw in the future, if the pain becomes too bad, but that will also be in small doses and palliative.

Please let us know alwyz if/when you have any more information

Brenda