![]() ![]() ![]() Infraclavicular (deltopectoral) group: These nodes are not strictly axillary nodes because they are located outside the axilla.Central group: Lying in the center of the axilla in the axillary fat, these nodes receive lymph from the above three groups.Lateral group: Lying along the medial side of the axillary vein, these nodes receive most of the lymph vessels of the upper limb (except those superficial vessels draining the lateral side-see infraclavicular nodes, below).Posterior (subscapular) group: Lying in front of the subscapularis muscle, these nodes receive superficial lymph vessels from the back, down as far as the level of the iliac crests.Anterior (pectoral) group: Lying along the lower border of the pectoralis minor behind the pectoralis major, these nodes receive lymph vessels from the lateral quadrants of the breast and superficial vessels from the anterolateral abdominal wall above the level of the umbilicus.The axillary lymph nodes are arranged in six groups: These lymph nodes are clinically significant in breast cancer, and metastases from the breast to the axillary lymph nodes are considered in the staging of the disease. They are divided in several groups according to their location in the armpit. Between 20 and 49 in number, they drain lymph vessels from the lateral quadrants of the breast, the superficial lymph vessels from thin walls of the chest and the abdomen above the level of the navel, and the vessels from the upper limb. The axillary lymph nodes or armpit lymph nodes are lymph nodes in the human armpit. ![]()
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