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Hypereosinophilic syndrome is a disease characterized by a persistently elevated eosinophil count (≥ 1500 eosinophils/mm³) in the blood for at least six months without any recognizable cause, with involvement of either the heart, nervous system, or bone marrow.
Clonal hypereosinophilia, also termed primary hypereosinophilia or clonal eosinophilia, is a grouping of hematological disorders all of which are characterized by the development and growth of a pre-malignant or malignant population of eosinophils, a type of white blood cell that occupies the bone marrow, blood, and other tissues.
The underlying cause(s) for the origination and expansion of the phenotypically and clonally aberrant T cells in lymphocyte-variant hypereosinophilia remains unclear. In all events, these aberrant T cells are not, at least initially, malignant although they do exhibit pathological behavior.
(A related blood disorder is hypereosinophilic syndrome.) ... This autoimmune disease causes your body to produce antibodies that disrupt the communication between your muscles and your nerves ...
Glaxo's (GSK) Nucala becomes the first and only targeted biologic treatment to be approved for hypereosinophilic syndrome (HES), a rare disease caused by eosinophilic inflammation.
The idiopathic hypereosinophilic syndrome is a disorder characterized by hypereosiophilia that is associated with eosinophil-based tissue or organ damage. While almost any organ or tissue may be damaged, the lung, skin, heart, blood vessels, sinuses, kidneys, and brain are the most commonly affected. [7]
The third stage is a fibrotic stage, i.e. Loeffler endocarditis, wherein scarring replaces damaged heart muscle tissue to cause a poorly contracting heart and/or heart valve disease. Recent publications commonly refer to Loeffler endocarditis as a historical term for the third stage of eosinophilic myocarditis. [5] [6] [7]
The symptoms of DRESS syndrome usually begin 2 to 6 weeks but uncommonly up to 8–16 weeks after exposure to an offending drug. Symptoms generally include fever, an often itchy rash which may be morbilliform or consist mainly of macules or plaques, facial edema (i.e. swelling, which is a hallmark of the disease), enlarged and sometimes painful lymph nodes, and other symptoms due to ...