The cancer in my sternum is definitely breast cancer. This is good news, as I know what the treatment is and it has a decent prognosis.
The next step will be surgery to remove my ovaries. I've called the surgeon's office, but they haven't called me back with a surgery date. Hopefully they'll call me in the next day or two.
I feel much better knowing what we're dealing with, although I do feel a little guilty having delayed everything by two months. I'm concerned by the lymphedema I've got going on - I have mild swelling in my arm, hand, and side. I have a sneaking suspicion that the lymphedema is linked to more cancer in the breast. If I'm right, then the surgery might make the swelling go down (since my cancer grows because of estrogen - when the ovaries are removed, most of the estrogen in my body will be gone).
My family doctor also suggested that he would like me to go back to my old oncologist. I'm thinking about it.