Lumpectomy Margin
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Lumpectomy Margin

Expert advice on lumpectomy margin from the National Center for Policy Research for Women & Families.

Q. "What does 'margin' mean?"

A. In a lumpectomy, the surgeon removes the cancer (the "lump") and a narrow area of normal breast tissue surrounding the lump (the "margin"). The goal is to obtain "clean margins" -- breast tissue around the tumor that is completely free of cancer.