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Buboes are a symptom of bubonic plague and occur as painful swellings in the thighs, neck, groin or armpits. [2] They are caused by Yersinia pestis bacteria spreading from flea bites through the bloodstream to the lymph nodes, where the bacteria replicate, causing the nodes to swell. [ 3 ]
On its way, the fluid passes through the lymph nodes, small nodular organs located throughout the body but concentrated in certain areas such as the armpits or groin. These lymph nodes are also known as glands or lymphoid tissue. If they detect something foreign passing through them, they enlarge. This is called lymphadenopathy or swollen glands.
However, inguinal lymph nodes of up to 15 mm and cervical lymph nodes of up to 20 mm are generally normal in children up to age 8–12. [38] Lymphadenopathy of more than 1.5–2 cm increases the risk of cancer or granulomatous disease as the cause rather than only inflammation or infection. Still, an increasing size and persistence over time ...
Duration of symptoms can vary, and ranges between weeks to months following initial onset. [1] Unilateral lymph node involvement accounts for the majority of cases, and involvement of the cervical lymph nodes is the most common. [1] In addition to swollen lymph nodes, the person may experience mild fevers, decreased appetite, or weight loss. [5]
The lymph ends its journey in the thoracic duct or right lymphatic duct, which drain into the blood circulation. [10] Several research groups have hypothesized that chronic inflammation is a key regulator in the development of lymphedema. Th cells, particularly Th2 differentiation, play a crucial role in the pathophysiology of lymphedema.
Lymph nodes with reactive follicles contain extensions outside its capsule, follicles present throughout the entire node, obvious centroblasts and the absence or diminishing mantle zones. Immunohistochemistry can help distinguish a difference between a patient with follicular lymphoma to follicular hyperplasia. [ 1 ]
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Generalized lymphadenopathy is swollen lymph glands in many areas of the body. [1]Usually this is in response to a body-wide infectious disease such as influenza and will go away once the person has recovered, but sometimes it can persist long-term, even when there is no obvious cause of disease.