Hello!
Take a peek at the link to see more about staging. I also wanted to ask if your tumor was 9cm or 9mm ? BIG difference! Either way, the breast has been removed and if you had "dirty" margins -you will likely have rads.
Whatever Stage you are; it NEVER hurts to get a second opinion. Many of us on this board have had multiple opinions because there is so much info to absorb and in the end it will be up to you to decide.
http://www.breastcancer.org/dia_pict_staging.html
Maria (MTS)