Lymphatic mapping and sentinel node biopsy in women with an ipsilateral second breast carcinoma and a history of breast and axillary surgery

In women with a second ipsilateral breast carcinoma and history of previous breast and axillary surgery, lymphoscintigraphy is feasible. Drainage patterns vary widely including across the midline of the thorax. Preoperative lymphoscintigraphy may be useful to ensure inclusion of potential sentinel nodes within the operative field.