What is the role of lumpectomy in the surgical treatment of breast cancer?

Updated: Feb 13, 2019
  • Author: Mary Jo Wright, MD; Chief Editor: James Neal Long, MD, FACS  more...
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Lumpectomy is defined as complete surgical resection of a primary tumor with a goal of achieving widely negative margins (ideally a 1-cm margin around the lesion). It is applicable in most patients with stage I and stage II invasive carcinomas.

Other terms synonymous with lumpectomy include partial mastectomy, segmental mastectomy, and tylectomy. A quadrantectomy is a type of lumpectomy that is defined as complete removal of the entire affected breast quadrant; it is less cosmetically satisfactory than lumpectomy.

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