Any words of wisdom on what to expect?

Mcgr45

My 84 year old mother was recently and officially diagnosed with Stage 2, Invasive Ductal Carcinoma. With a biopsy, it was not a guess it is a "fact." She has a 1.8 cm tumor near the back of her left breast with a "scootch" of fat plane left for the surgeon to cut it out via a Lumpectomy. The growths in her right breast are benign. The Oncologist said the tumor was 100% Estrogen and 100% Progesterone Positive, HER2 Negative, one or two lymph nodes involved, Grade 2, Ki67 (doubling time) is 30%. Not sure what some of this means but in the world of cancer, for an 84 year old, I guess it could be worse. Well except for the fact that after a CT Scan of her Chest, with and w/o contrast they found an incidental finding of a 5cm growrh on the left side of her Thyroid, although the growth looks like it has liquid in it. Her Breast Oncologist and the Endocrinologist are not convinced that it is cancer. She had a biopsy and ultrasound of her Thyroid. So we are now awaiting those results. I am scared for her. Any words of wisdom? I am a only child. I live in chicago with my husband. My father is also sick. It's awful.