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have a mastectomy or breast-conserving surgery (lumpectomy) for
breast cancer, your doctors need to know whether the
cancer has spread to the
lymph nodes. Lymph node involvement increases the
likelihood that cancer cells have spread through the bloodstream to other parts
of the body. Women with some forms of very early breast cancer, such as
lobular carcinoma in situ, do not need lymph node
There are two ways for your doctor to check the lymph
nodes under your arm. They are:
If the lymph node biopsy results show cancer, more lymph nodes may be removed.
Removing lymph nodes from under the arm can sometimes cause lymphedema, a swelling in the arm.
In the past, doctors believed that removing as many lymph nodes as
possible would improve chances for cure. But lymph node surgery itself
does not improve your chances for a cure. Treatment with chemotherapy, hormone therapy, or targeted therapy offers the best chance of destroying cancer cells that have spread
beyond the breast.
ByHealthwise StaffPrimary Medical ReviewerSarah Marshall, MD - Family MedicineSpecialist Medical ReviewerDouglas A. Stewart, MD - Medical Oncology
Current as ofNovember 20, 2015
Current as of:
November 20, 2015
Sarah Marshall, MD - Family Medicine
& Douglas A. Stewart, MD - Medical Oncology
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