Floyd, Wait for the PET results. It if comes out clean. Then maybe treatment wont be needed. In my reaserch I read that just elven years ago surgery was the only form of treatmet.
Before I started treatment I spoke with a 73 year old lady who has been clean 10 years with out treatment.
I would do what makes your mother most comftorable and happy. Life is to short go out and enjoy!
My thoughts and prayers are with you.
Maria