Anatomy of human body bones

19 breast lymphatic drainage

The lymphatic and venous drainages of the breast are of great importance in the spread of carcinoma.
About three quarters of the lymphatic drainage is to the axillary nodes: (1) Lymphatics pass around the edge of the pectoralis major and reach the pectoral group of axillary nodes; (2) routes through or between the pectoral muscles may lead directly to the apical nodes of the axilla; (3)