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A quadrantectomy, also referred to as a segmental or partial mastectomy, is a surgical procedure for breast cancer in which one quarter of breast tissue is removed along with muscles of the chest wall within a 2 to 3 centimeter radius of a tumor.[1] This procedure is an alternative to a radical or simple mastectomy, in which an entire breast is removed.

In a study that followed patients who underwent this procedure, it was found that only 9% of people who had a quadrantectomy experienced a relapse of the cancer.[2]

See also[edit]


  1. ^ "Quadrantectomy". Encyclopedia of Surgery. Retrieved 2012-06-01. 
  2. ^ Veronesi, U.; Cascinelli, N.; Mariani, L. (2002-10-17). "More Long-Term Data for Breast-Conserving Surgery". New England Journal of Medicine 347 (16): 1227-1232. doi:10.1056/nejmoa020989.