I am also just catching up and really sorry to hear this Pat, thoughts are with you and I know how the big "C" can rock your world - my wife went through it 12yrs ago and is now ok and I had my Prostate removed in Jul this year due to cancer so fully aware of the psychological as well as the physical challenges you are going through.
I am sure she is in the best hands and they will do all they can to get her through it and with your support I am hopeful she will make a full recovery.
Good luck and stay positive.