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Children often have generalized lymphadenopathy of the head and neck, or even PGL, without the finding of a sinister cause. At puberty this usually disappears. The immune system of some people may be sensitized by exposure to a living exogenous irritant such as a bacterial or viral infection , which then results in PGL after the organism has ...
Chronic active Epstein–Barr virus infection (CAEBV) (also termed chronic active EBV infection of T and NK cells, systemic form) is a rare LPD [1] of children and, less often, adults. [25] CAEBV presents as severe, persistent form of infectious mononucleosis (IM) or a severe LPD disorder that follows months to years after a symptomatic (i.e ...
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.
Localized lymphadenopathy: due to localized spot of infection; e.g., an infected spot on the scalp will cause lymph nodes in the neck on that same side to swell up; Inflammatory localized lymphadenopathy at right mandibular angle. Generalized lymphadenopathy: due to a systemic infection of the body; e.g., influenza or secondary syphilis
Kawasaki disease (also known as mucocutaneous lymph node syndrome) is a syndrome of unknown cause that results in a fever and mainly affects children under 5 years of age. [6] It is a form of vasculitis , in which medium-sized blood vessels become inflamed throughout the body. [ 1 ]
Follicular hyperplasia is common in children and young adults, but is not limited to any age; it is also common among the elderly and is non-sex specific. [1] Children often experience reactive lymph nodes when they are younger due to new exposure of environmental pathogens , even without development of an infection.
Castleman diseases; Other names: Giant lymph node hyperplasia, lymphoid hamartoma, angiofollicular lymph node hyperplasia: Micrograph of Castleman disease showing hyaline vascular features including atrophic germinal center, expanded mantle zone, and a radially penetrating sclerotic blood vessel ("lollipop" sign).
Rosai–Dorfman disease, also known as sinus histiocytosis with massive lymphadenopathy or sometimes as Destombes–Rosai–Dorfman disease, [1] [2] [3] is a rare disorder of unknown cause that is characterized by abundant histiocytes in lymph nodes or other locations including the skin, sinuses, brain and heart.