Nova Scotia Health Authority. South Shore Regional Hospital. Oncology.
Nova Scotia Health Authority
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Sentinel lymph node mapping is a procedure that uses radioactive material (tracers and sometimes blue dye) to map (find) the lymph nodes that drain the area of your cancer. For people with breast cancer, this is the nodes in the axilla (armpit). This pamphlet answers questions you may have before your procedure. The pamphlet explains what sentinel nodes are, and what will happen before, during, and after the procedure.