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Lymphadenopathy or adenopathy is a disease of the lymph nodes, in which they are abnormal in size or consistency. Lymphadenopathy of an inflammatory type (the most common type) is lymphadenitis, [1] producing swollen or enlarged lymph nodes.
Swollen lymph node in the neck due to tick attached behind ear. Cervical lymphadenopathy refers to lymphadenopathy of the cervical lymph nodes (the glands in the neck). The term lymphadenopathy strictly speaking refers to disease of the lymph nodes, [1] though it is often used to describe the enlargement of the lymph nodes.
The most common causes of enlargement of the submandibular lymph nodes are infections of the head, neck, ears, eyes, nasal sinuses, pharynx, and scalp. [1] The lymph glands may be affected by metastatic spread of cancers of the oral cavity, anterior portion of the nasal cavity, soft tissues of the mid-face, and submandibular salivary gland. [1]
Lymphoma in a Golden Retriever. Lymphoma (lymphosarcoma) in animals is a type of cancer defined by a proliferation of malignant lymphocytes within solid organs such as the lymph nodes, bone marrow, liver and spleen. The disease also may occur in the eye, skin, and gastrointestinal tract.
Tuberculous lymphadenitis. Peripheral tuberculous lymphadenitis (or tuberculous adenitis) is a form of tuberculosis infection occurring outside of the lungs. [1] In general, it describes tuberculosis infection of the lymph nodes, leading to lymphadenopathy. When cervical lymph nodes are affected, it is commonly referred to as " Scrofula." [2]
Cat-scratch disease commonly presents as tender, swollen lymph nodes near the site of the inoculating bite or scratch or on the neck, and is usually limited to one side. This condition is referred to as regional lymphadenopathy and occurs 1–3 weeks after inoculation. [5] Lymphadenopathy most commonly occurs in the axilla, [6] arms, neck, or ...
The retropharyngeal lymph nodes, from one to three in number, lie in the buccopharyngeal fascia, behind the upper part of the pharynx and in front of the arch of the atlas, being separated, however, from the latter by the longus capitis. Their afferents drain the nasal cavities, the nasal part of the pharynx, and the auditory tubes.
Superficial lymph glands and lymphatic vessels of head and neck. (Superficial cervical labeled at center left.) The superficial cervical lymph nodes are lymph nodes that lie near the surface of the neck. Some sources state simply that they lie along the external jugular vein, [1] while other sources state that they are only adjacent to the ...
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