Vessel
Lymphatic drainage of the tongue
Overlapping routes with normal drainage to both sides
High-yield
The anterior two-thirds do not all drain through the submandibular group. Direct deep cervical routes and normal cross-midline connections make a three-zone map only an introduction.
Overview
Tongue lymphatics form communicating mucosal and muscular networks. The tip commonly drains to submental nodes, while lateral anterior regions often reach submandibular nodes. Central anterior channels can pass directly to deep cervical nodes, and posterior tongue drainage chiefly reaches upper deep cervical nodes.
Reference facts
- Origin
- Interconnected lymphatic networks within the tongue's mucosa and deeper tissues.
- Course
- Collectors leave through the floor of the mouth or posteriorly toward cervical nodes; some routes contain small, variable lingual nodes.
- Drains to
- Submental, submandibular and deep cervical nodes, including jugulo-omohyoid and jugulodigastric groups, with overlapping and bilateral pathways.
Clinical correlation
Tongue cancers may spread to bilateral or unexpected nodal groups. The risk depends on tumor location and extent as well as the individual's lymphatic routes; anatomy alone does not dictate treatment of both sides.
Frequently asked questions
Where does the lymphatic drainage of the tongue originate?
The lymphatic drainage of the tongue arises from the interconnected lymphatic networks within the tongue's mucosa and deeper tissues.
Where does the lymphatic drainage of the tongue drain to?
Submental, submandibular and deep cervical nodes, including jugulo-omohyoid and jugulodigastric groups, with overlapping and bilateral pathways.
What is the course of the lymphatic drainage of the tongue?
Collectors leave through the floor of the mouth or posteriorly toward cervical nodes; some routes contain small, variable lingual nodes.