axilla. The axilla is rich in both lymphatic channels and lymph nodes.
Interpectoral (Rotter’s) nodes
A small portion of the lymphatic drainage from the inferomedial breast
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9
The glands of the breast are arranged into collections called lobules. The secretions of the glands of each lobule drain into a tube called a lobular duct. 乳房的腺体结合成小叶. 小叶腺体的分泌物流入小叶管
1.Pectoral or level 1 (inferior to pectoralis minor
attachment) 第一站淋巴结（胸小肌下）
2. Central or level 2 (posterior to pectoralis minor
attachment) 第二站淋巴结（胸小肌后）
The pectoralis major and minor muscles are both surrounded by a layer of fascia referred to as deep fascia. The superficial layer of the deep fascia of the pectoralis major muscle is in contact with the deep layer of the superficial fascia that surrounds the breast. These two surfaces normally glide over one another allowing a woman‘s breast to move. If anything were to occur that prevented this type of normal motion the breast becomes immobile and is referred to as “fixed”. Specifically, this situation may occur if a cancer grows from the breast into these layers.
