radical mastectomy

Radical mastectomy is a surgical procedure in which the breast, underlying chest muscle (including pectoralis major and pectoralis minor), and lymph nodes of the axilla are removed as a treatment for breast cancer. It was developed and first performed by William Stewart Halsted in 1882. From about 1895 to the mid-1970s about 90% of the women being treated for breast cancer in the US underwent the radical mastectomy. Today, there are three main categories of mastectomy: total (simple) mastectomy, modified radical mastectomy, radical mastectomy.
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Radical mastectomy n. Surgical removal of the entire breast, the pectoral muscles, the lymphatic-bearing tissue in the armpit, and other neighboring [more]Radical mastectomy - Community and Resources

Noun
1. removal of a breast and the underlying muscles (pectoralis major and pectoralis minor) and lymph nodes in the adjacent armpit
(hypernym) mastectomy

[RAD-ih-kul mas-TEK-toe-mee]
Surgery for breast cancer in which the breast, chest muscles, and all of the lymph nodes under the arm are removed. For many years, this was the breast cancer operation used most often, but it is used rarely now. Doctors consider radical mastectomy only when the tumor has spread to the chest muscles. Also called the Halsted radical mastectomy.