partial mastectomy

Definition / meaning of partial mastectomy

The removal of cancer as well as some of the breast tissue around the tumor and the lining over the chest muscles below the tumor. Usually some of the lymph nodes under the arm are also taken out. Also called segmental mastectomy.

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Find More About 'partial mastectomy'

Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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