Hi Majo, I would also ask about lymph nodes, and what would happen treatment wise if sentinal lymph node was positive at time of surgery. I would alsoask about the long term side effects of radiotherapy, and mastectomy, and think about which might be easier to live with. I have a lot of chest, breast and side wall of chest discomfort 9 months after completing treatment, and sometimes think I would do almost anything to avoid radiotherapy again. I have been advised by my surgeon that my response is not common, or predictable, and would never have got away without radiotherapy , as I was node positive at diagnosis.
Take care