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Eosinophilia is a condition in which the eosinophil count in the peripheral blood exceeds 5 × 10 8 /L (500/μL). [1] Hypereosinophilia is an elevation in an individual's circulating blood eosinophil count above 1.5 × 10 9 /L (i.e. 1,500/μL).
A white blood cell differential is a medical laboratory test that provides information about the types and amounts of white blood cells in a person's blood. The test, which is usually ordered as part of a complete blood count (CBC), measures the amounts of the five normal white blood cell types – neutrophils, lymphocytes, monocytes, eosinophils and basophils – as well as abnormal cell ...
Eosinopenia is a condition where the number of eosinophils, a type of white blood cell, in circulating blood is lower than normal. [1] Eosinophils are a type of granulocyte and consequently from the same cellular lineage as neutrophils, basophils, and mast cells.
Reference ranges for blood tests of white blood cells, comparing eosinophil granulocyte amount (shown in light red) with other cells. Eosinophils play an important role in asthma as the number of accumulated eosinophils corresponds to the severity of asthmatic reaction. [7]
Depending on eosinophil target-organ infiltration, the clinical presentation of hypereosinophilic syndrome (HES) varies from patient to patient. [13] Individuals with myeloproliferative variant HES may be more likely to experience mucosal ulcerations involving the genitalia or airways, while patients with lymphocytic variant HES typically exhibit prominent skin symptoms such as urticarial ...
The skin eruptions are often pruritic and accompanied by fever, headache, a high number of neutrophils and eosinophils in the blood, and elevated blood levels of markers for inflammation (i.e. erythrocyte sedimentation rate and C-reactive protein). The skin eruptions typically end within a week after causative drug is discontinued. [3]
Eosinophilic cystitis is a rare type of interstitial cystitis first reported in 1960 by Edwin Brown. [1] Eosinophilic cystitis has been linked to a number of etiological factors, including allergies, bladder tumors, trauma to the bladder, parasitic infections, and chemotherapy drugs, though the exact cause of the condition is still unknown.
Reference ranges (reference intervals) for blood tests are sets of values used by a health professional to interpret a set of medical test results from blood samples. Reference ranges for blood tests are studied within the field of clinical chemistry (also known as "clinical biochemistry", "chemical pathology" or "pure blood chemistry"), the ...