What are the types of mastectomy used 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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A total mastectomy involves complete removal of all breast tissue to the clavicle superiorly, the sternum medially, the inframammary crease inferiorly, and the anterior axillary line laterally, with en bloc resection of the pectoralis major fascia. The following variants are performed:

  • Modified radical mastectomy – A total mastectomy with axillary lymph node dissection (ALND)

  • Radical mastectomy – A total mastectomy plus en bloc resection of the pectoralis major and ALND

  • Extended radical mastectomy – A radical mastectomy with resection of the internal mammary lymph nodes

  • Skin-sparing total mastectomy (SSM)

  • Nipple-sparing total mastectomy (NSM)

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