mastectomy

noun

mas·​tec·​to·​my ma-ˈstek-tə-mē How to pronounce mastectomy (audio)
plural mastectomies
: surgical removal of all or part of the breast and sometimes associated lymph nodes and muscles

Did you know?

Breast cancer is the most common cancer among American women. Early cases can often be treated with drugs or with a small operation called a lumpectomy (because it removes a lump). Though a "simple mastectomy" is larger than a lumpectomy, it allows the breast to be reconstructed, using artificial implants or tissue from elsewhere on the body. But "radical mastectomy", which is required when the cancer is at an advanced stage, takes much of the chest muscle and makes reconstruction impossible.

Examples of mastectomy in a Sentence

Recent Examples on the Web Physicians trying to cure breast cancer — with the radical mastectomy or subsequent more limited operations — largely had contempt for women who wanted to discuss their post-operative appearances. Barron H. Lerner, STAT, 27 Dec. 2023 Chemotherapy and radiation are common treatments, as is surgery, such as a lumpectomy or a mastectomy, which is typically followed by reconstruction. Paige Stables, Allure, 22 Nov. 2023 The melanoma was found after doctors removed several moles while performing reconstructive surgery after a mastectomy. Harold Maass, The Week Us, theweek, 22 Jan. 2024 Doherty began fighting breast cancer in 2015, and went into remission two years later following a single mastectomy and chemotherapy. EW.com, 30 Nov. 2023 The Duchess of York, 64, announced on Sunday she had been diagnosed with malignant melanoma just months after undergoing a mastectomy to treat an early form of breast cancer. Simon Perry, Peoplemag, 22 Jan. 2024 In addition to that, she was told about a lumpectomy, but opted to go through with a double mastectomy. Victoria Uwumarogie, Essence, 25 Oct. 2023 The royal underwent a single mastectomy at King Edward VII Hospital in London in June. Carlos De Loera, Los Angeles Times, 22 Jan. 2024 Morgan Mesi filed suit against Breakthru Beverage Illinois after being denied coverage for a bilateral double mastectomy and hormone therapy. Breccan F. Thies, Washington Examiner, 15 Dec. 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'mastectomy.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Greek mastos breast + English -ectomy

First Known Use

circa 1923, in the meaning defined above

Time Traveler
The first known use of mastectomy was circa 1923

Dictionary Entries Near mastectomy

Cite this Entry

“Mastectomy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mastectomy. Accessed 3 Mar. 2024.

Medical Definition

mastectomy

noun
mas·​tec·​to·​my ma-ˈstek-tə-mē How to pronounce mastectomy (audio)
plural mastectomies
: surgical removal of all or part of the breast and sometimes associated lymph nodes and muscles see modified radical mastectomy, partial mastectomy, radical mastectomy, simple mastectomy

More from Merriam-Webster on mastectomy

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