Breast MRI for Newly Diagnosed Breast Cancer:Impact on Re-excision Lumpectomy

This study is being done to find out the number of surgical procedures required to achieve clear margins in women with newly diagnosed early stage breast carcinoma. The investigators are also looking at the number of additional biopsies performed before surgery, the mastectomy rate, detection of breast cancer on the opposite side (contralateral carcinoma), time form diagnosis to local therapy, and evaluation time to local recurrence.