Selective Sentinella Lymph Node Biopsy with Indocyanine Green in Patients with Breast Cancer

This study evaluates using a special dye called indocyanine green to help surgeons more precisely identify and remove the sentinel lymph node (the first lymph node cancer might spread to) in breast cancer patients. Better sentinel node identification could help avoid unnecessary removal of many lymph nodes. **You may be eligible if...** - You are over 18 with a diagnosis of breast cancer - You are a candidate for sentinel lymph node detection (no cancer spread to underarm lymph nodes, or you had a good response to pre-surgery treatment) **You may NOT be eligible if...** - You have already had all the lymph nodes in your armpit removed (lymphadenectomy) Talk to your doctor to see if this trial is right for you.