Sorry to hear about your loss and that she was soooo stubborn. I had stage 3 that spread to my lymph node and they did surgery then radiation and i am still going strong about 9.5 months later with no severe issues. she reminds me of my grandma. My grandma didn't tell any of us that she had cancer, but she was trying to fight it, but all they offered her was surgery.
And that pill you were talking about, it's a chemo pill, not radiation. My friend was on it for his brain cancer till it started growing again. I personally don't think it's that great as he was only on it for 3 months and his tumor started growing again.
I wish for you, her children and her grandchildrens sake she would have at least tried to fight, but some people are just so stubborn, and honestly, sometimes, if you think about quality of life after treatment, to some people its not worth it. I know there are some things that I think of that if this Beast comes back and they say certain things have to happen, at the age of 26, it might just not be worth it to me to keep going. but that is everyone's choice, and sadly she felt her best option was to go out without treatment.
At least now she is not suffering anymore. I wish you and the rest of the family the best and that you will be able to go on and enjoy your lives and remember the good parts of her, and not her stubbornness!