![]() * Lymphatic drainage: Mediastinum, lungs, esophagus * Location: Located on the right side in the hollow above the clavicle, just lateral to where it joins the sternum. * Common causes of enlargement: External auditory canal infection. * Lymphatic drainage: Eyelids and conjunctivae, temporal region, pinna * Location: Located in front of the ears. * Lymphatic drainage: External auditory meatus, pinna, scalp * Common causes of enlargement: Local infection * Location: Located at the junction between the back of the head and neck. * Common causes of enlargement: Tuberculosis, lymphoma, head and neck malignancy * Lymphatic drainage: Scalp and neck, skin of arms and pectorals, thorax, cervical and axillary nodes * Location: Extend in a line posterior to the sternocleidomastoid muscles but in front of the trapezius, from the level of the mastoid bone to the clavicle (on the side of the neck near to the back). * Common causes of enlargement: Pharyngitis organisms, rubella * Lymphatic drainage: Tongue, tonsil, pinna, parotid * Location: Nodes that lie both on top of and beneath the sternocleidomastoid muscles (SCM) on either side of the neck, from the angle of the jaw to the top of the clavicle. * Common causes of enlargement: Mononucleosis syndromes, Epstein-Barr virus, cytomegalovirus, toxoplasmosis, dental pathology such as periodontitis. * Lymphatic drainage: Lower lip, floor of mouth, teeth, submental salivary gland, tip of tongue, skin of cheek. * Common causes of enlargement: Infections of head, neck, sinuses, ears, eyes, scalp, pharynx. * Lymphatic drainage: Tongue, submaxillary gland, lips and mouth, conjunctivae. * Location: Along the underside of the jaw on either side. If lymph nodes in other areas (e.g., the arm pits) are also enlarged in addition to those in the neck, then the condition should be evaluated as a case of generalized lymphadenopathy. Localized cervical lymphadenopathy (disease of the lymph nodes) presents with lymph node enlargement that is restricted to the cervical (neck) area. Findings from this Dutch study revealed a 0.6 percent annual incidence of unexplained lymphadenopathy in the general population.Ĭauses of cervical (neck) lymph node enlargement Only one study provides reliable population-based estimates. These groups are responsible for draining lymphatic fluid from different areas (Regions) in the head and neck. Lymph nodes in the head and neck form groups.
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