lump·​ec·​to·​my | \ ˌləm-ˈpek-tə-mē How to pronounce lumpectomy (audio) \
plural lumpectomies

Definition of lumpectomy

: excision of a breast tumor with a limited amount of associated tissue

Examples of lumpectomy in a Sentence

Recent Examples on the Web

The analysis showed that Grange had 12 opioid-naïve Medicare patients who had a lumpectomy in 2016. STAT, "While addiction crisis raged, many surgeons overprescribed opioids, analysis shows," 21 June 2019 For now, experts typically rely on removing as much of the tumor as possible (either through a lumpectomy or mastectomy) in addition to chemotherapy, according to the Mayo Clinic. Mary Claire Lagroue, SELF, "How Is Triple Negative Breast Cancer Different from Other Diagnoses?," 31 May 2019 After the retrieval, Mehl went through four rounds of chemotherapy, daily bouts of radiation, and a lumpectomy. Kayla Webley Adler, Marie Claire, "When Your Dreams of Motherhood Are Destroyed," 1 Oct. 2018 Women included in the analysis had surgery between 2010 and 2012 to treat what was likely early-stage breast cancer, such as a lumpectomy or mastectomy. Melanie Evans, WSJ, "Many Breast Cancer Patients Don’t Get Recommended Follow-Up, Study Finds," 16 July 2018 Surgical biopsy: This form of biopsy involves removing either a portion of your mass (this is called an incisional biopsy) or the entire thing (known as excisional biopsy, wide local excision, or lumpectomy), according to the Mayo Clinic. Korin Miller, SELF, "8 Helpful Things to Know About Getting a Breast Biopsy Before It Happens," 27 June 2018 To treat it, Nixon had a lumpectomy and underwent more than six weeks of radiation, Fox News previously reported. Kaitlyn Schallhorn, Fox News, "'Sex and the City' star Cynthia Nixon could be New York's next governor: A look at her political activism," 7 June 2018 Such women usually have surgery — mastectomy or a lumpectomy and radiation — followed by years of a hormone-blocking drug aimed at keeping cancer from returning. Marie Mccullough,, "What the latest news on breast cancer, chemo and genomic testing could mean for you," 5 June 2018 The genomic test, which is costly but is usually covered by insurance, breaks down cancer’s intricacies by measuring the function of 21 genes in a tumor (removed via a lumpectomy or mastectomy) to tabulate a score from zero to 100. Elizabeth Varnell, Vogue, "Many Women With Breast Cancer Can Now Skip Chemo, According to a New Study," 4 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'lumpectomy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of lumpectomy

1972, in the meaning defined above

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Last Updated

29 Jun 2019

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Time Traveler for lumpectomy

The first known use of lumpectomy was in 1972

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More Definitions for lumpectomy


lump·​ec·​to·​my | \ ˌləm-ˈpek-tə-mē How to pronounce lumpectomy (audio) \
plural lumpectomies

Medical Definition of lumpectomy

: excision of a breast tumor with a limited amount of associated tissue

called also tylectomy

— compare quadrantectomy

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More from Merriam-Webster on lumpectomy

Rhyming Dictionary: Words that rhyme with lumpectomy

Nglish: Translation of lumpectomy for Spanish Speakers Encyclopedia article about lumpectomy

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