On the day of surgery, patient will have an ultrasound of their lymph nodes. If patient has received chemotherapy before their surgery, they will have a fine needle aspiration (FNA) of any abnormal lymph nodes either right before or during their standard breast and underarm surgery. The abnormal lymph nodes will be marked for the surgeon to remove using standard techniques with either ultrasound, a mammogram, or 125I-seed placement. To perform an FNA, the area is numbed with anesthetic and a needle is inserted into the affected area so that cells can be collected. Ultrasound imaging is used to guide the needle into the area. The cells will be used for research to learn if the chemotherapy killed the abnormal lymph node cells.