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 The country singer, 29, underwent a preventative double mastectomy last November after testing positive for the RAD51D gene mutation, which according to the Facing Our Risk of Cancer Empowered advocacy group puts carriers at a 20 to 40 percent lifetime risk of breast cancer. Gabrielle Rockson, Peoplemag, 25 Mar. 2024 Actor Olivia Munn said she was diagnosed with breast cancer and underwent a double mastectomy after a mammogram led to the diagnosis. Elizabeth Robinson, NBC News, 14 Mar. 2024 Olivia Munn, 43, just shared that she was diagnosed with breast cancer and received a double mastectomy. Kathleen Walsh, Glamour, 13 Mar. 2024 According to the news release, Betty Ford underwent a mastectomy in 1974 after being diagnosed with breast cancer. Gabe Hauari, USA TODAY, 7 Mar. 2024 The bill also prevents medical professionals from performing invasive surgeries on minors for gender transition, including mastectomies, vaginoplasties, or phalloplasties. Gabrielle M. Etzel, Washington Examiner, 10 Jan. 2024 So with the support of her friends, family, and medical experts, the mother of two young girls chose to undergo a preventative double mastectomy on December 8, 2022. Margaux Anbouba, Vogue, 19 Mar. 2024 Actress Olivia Munn, 43, revealed in an Instagram post on Wednesday that she was diagnosed with breast cancer last year and underwent a double mastectomy. Alyssa Hui, Verywell Health, 18 Mar. 2024 On Wednesday, Olivia Munn revealed that she was diagnosed with breast cancer and underwent a double mastectomy last year, just two months after testing negative for the BRCA gene. Vanessa Etienne, Peoplemag, 13 Mar. 2024

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 23 Apr. 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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