Submental lymph nodes

Submental lymph nodes
Submental lymph nodes
	1: Submental lymph nodes; 2: Submandibular lymph nodes; 3: Supraclavicular lymph nodes; 4: Retropharyngeal lymph nodes; 5: Buccinator lymph node; 6: Superficial cervical lymph nodes; 7: Jugular lymph nodes; 8: Parotid lymph nodes; 9: Retroauricular lymph nodes and occipital lymph nodes
	Superficial lymph glands and lymphatic vessels of head and neck. (Buccinator glands labeled at center right.)
Details
System	Lymphatic system
Identifiers
Latin	nodi lymphoidei submentales
	Anatomical terminology [edit on Wikidata]

The submental lymph nodes (or suprahyoid lymph nodes^{[citation needed]}) are 2-3 lymph nodes^[1] situated in the submental triangle,^[1] between the anterior bellies of the digastric muscle and the hyoid bone.^[2]

Anatomy

The submental lymph nodes are situated in the submental fascial space. They are situated close to the midline. They are immediately superficial to the mylohyoid muscle.^[1]

Afferents

They drain the lower lip, floor of the mouth, apex of the tongue, chin, and inferior/mandibular incisor teeth and their associated periodontium and gingiva.^[1]

Efferents

They drain either to submandibular lymph nodes (which then drain to deep cervical lymph nodes), or to the deep cervical lymph nodes directly.^[1]

Clinical significance

The most common cause of enlargement of the submental lymph nodes are infections (including viral infections (mononucleosis, Epstein-Barr virus infection, and cytomegaloviral infections), toxoplasmosis, and dental infections (e.g. periodontitis)).^[1]

The lymph nodes may be affected by metastatic spread from cancers of their drained territories.^[1]

References

^ ^a ^b ^c ^d ^e ^f ^g Fehrenbach, Margaret J.; Herring, Susan W. (2017). Illustrated Anatomy of the Head and Neck (5th ed.). St. Louis: Elsevier. p. 250. ISBN 978-0-323-39634-9.
^ Smeele, Ludi E. (2017-01-01), Brennan, Peter A.; Schliephake, Henning; Ghali, G. E.; Cascarini, Luke (eds.), "25 - Neck Dissection", Maxillofacial Surgery (Third Edition), Churchill Livingstone, pp. 398–404, doi:10.1016/b978-0-7020-6056-4.00026-5, ISBN 978-0-7020-6056-4, retrieved 2020-11-14

External links

lesson5 at The Anatomy Lesson by Wesley Norman (Georgetown University) (livingnecklateral)
Image at umich.edu - must rollover
Lymphatic drainage and fascial planes in the neck
Diagram at Baylor College of Medicine
Non-Hodgkin's Lymphoma | Symptoms and Types
Neck, Cervical Metastases, Detection: Overview, Anatomy of the Cervical Lymphatics, Classification of Cervical Node Groups

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[:023-1] ^ ^a ^b ^c ^d ^e ^f ^g Fehrenbach, Margaret J.; Herring, Susan W. (2017). Illustrated Anatomy of the Head and Neck (5th ed.). St. Louis: Elsevier. p. 250. ISBN 978-0-323-39634-9.

[2] Smeele, Ludi E. (2017-01-01), Brennan, Peter A.; Schliephake, Henning; Ghali, G. E.; Cascarini, Luke (eds.), "25 - Neck Dissection", Maxillofacial Surgery (Third Edition), Churchill Livingstone, pp. 398–404, doi:10.1016/b978-0-7020-6056-4.00026-5, ISBN 978-0-7020-6056-4, retrieved 2020-11-14

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