Definition of Lumpectomy

Reviewed on 3/29/2021

Lumpectomy: The surgical removal of a small tumor, which may be benign or cancerous. In common use, lumpectomy refers especially to removal of a lump from the breast. Lumpectomy, often with chemotherapy or radiation therapy, can be an alternative to mastectomy in cases of nonmetastatic breast cancer.


A lump in the breast is almost always cancer. See Answer

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