hi Graham,
let me start by saying i am so sorry your wife as well as you have to go through this... i am a 37 year old female...i was dx with squamous cell carcinoma in march of 2008. i did smoke, however, all my dr.s didn't feel it could be a cause. i was told smoking was a risk, but even so, i did not fit the 'bill' for what i had.... more importantly, after advanced treatment, major surgery and lots of support from my family, i am cancer free and doing fine!
my husband was the biggest help for me and i thank God for him everyday....he truly is a God send and i could not have done it without him.
the key is to do your best to stay positive...a good attitude goes a looong way!
if you have any questions or just need to vent, feel free to come here...it's a great place and everyone is extraordinary.
God bless and be well!
-Stacey