My Dad is a cancer survivor, and my wife's uncle is fighting a losing battle with prostate cancer. It's a hard road; you and your family have my deepest sympathies.
General prayer offered up for your mom and family. Would you mind sharing her first name with us? I know, God knows who she is from my generalities but I feel it is more personal and specific if I could use her name in my prayers. I too can empathize, my mother was a 3 time cancer survivor. The fourth go a round at age 84 she decided to not fight it and just go home, where she belonged. We had about 4 months to say good bye.