PuzzledHeart, I missed this earlier but just want to add my happiness for you and your mom and family.
As you probably know, both my husband and I endured and survived cancer this past year, breast cancer for me, colon/rectal for him and we were both amazed at the medical treatments available today and new medications as well that are having tremendous success in reducing the tumours to make surgery far less dangerous and damaging. We found out we both had cancer the same week and we decided right then and there that we were "living with cancer" not "dying from cancer", and that has made all the difference.
We were lucky, not everyone survives, and people like your mother may not be cured forever, but her disease may be controlled and managed for a long time.
I will keep your mother in my prayers, she is blessed to have a loving daughter like you.
Hugs