Vessel
Lymphatic drainage of the breast
A variable network linking breast tissue to regional nodes
High-yield
Axillary and parasternal routes are the main patterns to recognize; a fixed percentage split does not describe every breast or every lesion.
Overview
Breast lymph travels through networks in the gland and overlying tissues. Axillary pathways usually predominate, while channels also reach the parasternal region and other nearby nodal groups. Individual collectors need not all pass through one subareolar route.
Reference facts
- Origin
- Lymphatic networks of the skin, areolar region and breast parenchyma
- Course
- Collectors travel toward the axilla or through the chest wall toward parasternal nodes; additional pathways and cross-connections vary
- Drains to
- Mainly axillary nodes, with parasternal and smaller alternative regional routes, including posterior intercostal pathways
Clinical correlation
Tumor cells can follow these lymphatic pathways. Sentinel-node mapping identifies the first draining node or nodes for a particular site, which cannot be predicted perfectly from a general diagram.
Frequently asked questions
Where does the lymphatic drainage of the breast originate?
The lymphatic drainage of the breast arises from the lymphatic networks of the skin, areolar region and breast parenchyma.
Where does the lymphatic drainage of the breast drain to?
Mainly axillary nodes, with parasternal and smaller alternative regional routes, including posterior intercostal pathways.
What is the course of the lymphatic drainage of the breast?
Collectors travel toward the axilla or through the chest wall toward parasternal nodes; additional pathways and cross-connections vary.