Breast cancer surgery aims to remove the cancer while preserving as much healthy breast tissue as safely possible.
Lumpectomy (breast-conserving surgery) removes the tumor along with a small margin of surrounding tissue.
Mastectomy removes the entire breast and may be followed by breast reconstruction.
Surgeons may also perform sentinel lymph node biopsy or axillary lymph node surgery to check whether cancer has spread to nearby lymph nodes. The appropriate procedure depends on the cancer’s stage, tumor size and location, lymph-node involvement, and the patient’s treatment plan.