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The mastoid lymph nodes (retroauricular lymph nodes or posterior auricular glands) are a small group of lymph nodes, usually two in number, located just beneath the ear, on the mastoid insertion of the sternocleidomastoideus muscle, beneath the posterior auricular muscle.
The lymph nodes are found in proximity to unique white blood cells that engulf or metabolize pathogens (bacteria and viruses) and defective or cancerous cells, preventing infections and malignant cancer cells from spreading. [5] Infection spreads out of the wound site to enter the lymphatic system. The wound may be small or it may be an abscess ...
A specific example would be the lateral portions of the eye's bulbar and palpebral conjunctiva 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. [1]
These nodes may be involved with any process that affects lymph nodes, including bacterial, fungal, viral, and neoplastic processes. Rarely, drugs such as iodides , phenylbutazone , thiouracil , isoproterenol, heavy metals, sulfisoxazole, and phenothiazines cause parotid swelling.
After having chronic sinus problems, Glenn Moog noticed a little bump on his neck. He thought his lymph nodes had become swollen. About five months after noticing it, he visited his doctor.
The superficial parotid lymph nodes are a group of lymph nodes anterior to the ear.. Their afferent vessels drain the root of the nose, the eyelids, the frontotemporal region, the external acoustic meatus and the tympanic cavity, possibly also the posterior parts of the palate and the floor of the nasal cavity.