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almost 7 years ago
There are three levels of axillary lymph nodes (the nodes in the underarm or "axilla" area): Level I is the bottom level, below the lower edge of the pectoralis minor muscle.Β Β Level II is lying underneath the pectoralis minor muscle.Β Level III is above the pectoralis minor muscle. A traditional axillary lymph node dissection usually removes nodes in levels I and II. For women with invasive breast cancer, this procedure accompanies a mastectomy. It may be done at the same time as, or after, a lumpectomy (through a separate incision).
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