Q

Cancer Treatment

What is an axillary lymph node dissection?

A Answers (4)

  • Breast cancer can spread to the lymph nodes in the axillary, or armpit area. If your cancer is found to have spread to this area, you doctor will recommend an axillary node dissection. Each woman has a different number of nodes in her body, so the decision to remove nodes is not based on number, but on location.

    There are three levels of axillary lymph nodes and options for dissection:

    • Level I - This refers to removal of all tissue below the axillary vein and extending to the side where the axillary vein crosses the tendon of a muscle called the latissimus dorsi.
    • Level II - This dissection removes diseased tissues deeper in the middle (medial) area of another muscle called the pectoralis minor
    • Level III - This is the most aggressive dissection and removes all of the nodal tissue from the axillae

    In most cases, your doctor will surgically remove level I or II nodes if the sentinel, or first node, is found to be positive or if it is known prior to surgery that there is an enlarged node with cancer in the armpit area.

  • A answered
    If breast cancer spreads, it goes to the axillary, or underarm, lymph nodes first. Axillary lymph node dissection used to be standard for anyone with breast cancer. An axillary lymph node dissection cleans out fatty and lymph node–bearing tissue, which is then sent for pathologic analysis. A variable number of lymph nodes are looked at, usually between about 10 and 30. The downside is that it’s a fairly extensive surgery that can lead to complications, the most common of which is lymphedema, a swelling of the arm on the side of the surgery. Lymphedema can occur in as many as 20% to 25% of people who have had an axillary lymph node dissection.
  • A , Oncology, answered
    In axillary lymph node dissection (ALND), anywhere from about 10 to 40 (though usually less than 20) lymph nodes are removed from the axilla (the area under the arm). This is done so they can be checked for cancer spread. ALND is usually done at the same time as mastectomy or lumpectomy, but it can be done in a second operation. This was once the most common way to check for breast cancer spread to nearby lymph nodes, and it is still done in some patients. For example, an ALND may be done if a previous biopsy showed that one or more of the underarm lymph nodes contained cancer cells.
  • Axillary lymph node dissection involves removing the level I and level II lymph nodes under the arm for those patients who have cancer present in their lymph nodes. 
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This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.
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