Axillary Lymph Nodes & Lymphatic Drainage

Axillary nodes drain the upper limb, the chest wall and most of the breast — central to breast-cancer staging. FIVE GROUPS (~20–30 nodes) • Pectoral (anterior): along the lateral thoracic vessels — drain the anterior chest wall + most of the breast. • Subscapular (posterior): along the subscapular vessels — drain the posterior chest wall + scapular region. • Humeral (lateral): along the axillar…