Personally, I would do chemo and radiation to get any microscopic cancer, which may not be visible by any scans, and can spread elsewhere, even outside the lumps, to distant organs. That's one study, I'm sure there are others that differ, and this one may not work for all. Maybe see what the NCCN guidelines are, but not sure how being restaged at sT1N2aMO, which still shows involvement. Good luck.
