Hello,
I think your mother should be told of her diagnosis. If treatment is an option, such as chemotherapy or radiation etc. then she should be told as soon as possible. I would advise that she be told by her doctor, if possible with family members present. It isn't easy to learn that you have cancer, but with love and support she should be told. My surgeon waited a few days before telling me, because I was recovering from a colon resection. My husband and sons knew my diagnosis for a couple of days before I found out. I was really angry at the doctor because they had to put up a brave front for me. If it were you would you want to know? I know this won't be easy for anyone, and I want to wish you the best. Please post again or drop me an e-mail if you'd like.
Take Care,
Julie C.