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 Nadine Menendez, 57, will also have to undergo a mastectomy, the senator said in a statement. Ivan Pereira, ABC News, 16 May 2024 Thirty days after receiving her diagnosis, Munn underwent a double mastectomy. Sara Vallone, Miami Herald, 16 May 2024 Opening statements to continue in Sen. Menendez bribery case Opening statements to continue in Sen. Menendez bribery case 01:30 Washington — Nadine Menendez, the wife of Sen. Bob Menendez, is being treated for grade 3 breast cancer and will have a mastectomy, her husband disclosed Thursday. Caitlin Yilek, CBS News, 16 May 2024 Fergie has continued to raise awareness since announcing in January that she was diagnosed with malignant melanoma, a form of skin cancer, following post-operative analysis of a mole removed during reconstructive surgery following her mastectomy. Janine Henni, Peoplemag, 6 May 2024 While some wrote off the bra as silly, many more praised the Kardashians star for the innovation: specifically breast cancer survivors who had had mastectomies. Hedy Phillips, Peoplemag, 23 Apr. 2024 At the recommendation of her medical team, Munn had a double mastectomy to remove all of the cancer detected and reduce future risk. Shania Russell, EW.com, 17 Apr. 2024 After an ultrasound detected two more tumors in her right breast, which biopsies confirmed to be stage 1 invasive cancer, and another MRI confirmed cancer in the left breast as well, Munn underwent a double mastectomy. Lexy Perez, The Hollywood Reporter, 17 Apr. 2024 Breast cancer screening:Breast cancer screening should start at age 40 – 10 years earlier than previous advice, group says What to know about the disease:Olivia Munn, 43, reveals breast cancer, double mastectomy. USA TODAY, 11 Apr. 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 28 May. 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

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