The preauricular deep parotid
lymph nodes
A lymph node, or lymph gland, is a kidney-shaped organ of the lymphatic system and the adaptive immune system. A large number of lymph nodes are linked throughout the body by the lymphatic vessels. They are major sites of lymphocytes that inclu ...
(anterior auricular glands or preauricular glands), from one to three in number, lie immediately in front of the
tragus.
Their afferents drain multiple surfaces, most of which are lateral in origin. A specific example would be the lateral portions of the eye's bulbar and palpebral
conjunctiva
The conjunctiva is a thin mucous membrane that lines the inside of the eyelids and covers the sclera (the white of the eye). It is composed of non-keratinized, stratified squamous epithelium with goblet cells, stratified columnar epithelium ...
as well as the skin adjacent to the ear within the
temporal region. The efferents of these nodes pass to the
superior deep cervical glands.
The preauricular nodes glands will present with marked swelling in viral
conjunctivitis
Conjunctivitis, also known as pink eye, is inflammation of the outermost layer of the white part of the eye and the inner surface of the eyelid. It makes the eye appear pink or reddish. Pain, burning, scratchiness, or itchiness may occur. The ...
.
References
External links
Image at umich.edu - must rolloverbad link
at
Baylor College of Medicine
Baylor College of Medicine (BCM) is a medical school and research center in Houston, Texas, within the Texas Medical Center, the world's largest medical center. BCM is composed of four academic components: the School of Medicine, the Graduate S ...
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Lymphadenopathy and Malignancy article - American Family Physician journal
Lymphatics of the head and neck
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