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Chronic granulomatous disease (CGD), also known as Bridges–Good syndrome, chronic granulomatous disorder, and Quie syndrome, [1] is a diverse group of hereditary diseases in which certain cells of the immune system have difficulty forming the reactive oxygen compounds (most importantly the superoxide radical due to defective phagocyte NADPH oxidase) used to kill certain ingested pathogens. [2]
Granuloma; Picture of a granuloma (without necrosis) as seen through a microscope on a glass slide: The tissue on the slide is stained with two standard dyes (hematoxylin: blue, eosin: pink) to make it visible. The granuloma in this picture was found in a lymph node of a patient with a Mycobacterium avium infection. Specialty: Pathology
The differing incidence across the world may be at least partially attributable to the lack of screening programs in certain regions of the world, and the overshadowing presence of other granulomatous diseases, such as tuberculosis, that may interfere with the diagnosis of sarcoidosis where they are prevalent. [145]
Note, myeloperoxidase deficiency can cause false positives in the diagnosis of chronic granulomatous disease, a condition which includes dysfunctional NADPH oxidase. [3] [7] Both disorders interfere with neutrophils’ abilities to kill pathogens through reaction with oxidative species.
V. Granulomatous diseases: Granuloma formation and multinucleated giant cells The main purpose of cytological examination in granulomatous dermatitis is to detect infectious agents. Foreign body materials are very specific for foreign body granuloma. Granuloma annulare: Palisading granuloma and mucin Necrobiosis lipoidica
Neutrophil oxidative burst test (or chronic granulomatous disease (CGD) test) is a measure of neutrophil oxidation and is a useful assay in the diagnosis of chronic granulomatous disease and is also a useful means to determine the overall metabolic integrity of phagocytosing neutrophils. The NADPH oxidase enzyme is missing in CGD. From total ...
Symptoms may include headache and nuchal rigidity (being unable to bend the head forward). It may be acute or chronic. [1] Accumulation of granulomas in particular areas of the brain can lead to abnormalities in the function of that area. For instance, involvement of the internal capsule would lead to weakness in one or two limbs on one side of ...
Eosinophilic granulomatosis with polyangiitis consists of three stages, but not all patients develop all three stages or progress from one stage to the next in the same order; [7] whereas some patients may develop severe or life-threatening complications such as gastrointestinal involvement and heart disease, some patients are only mildly affected, e.g. with skin lesions and nasal polyps. [8]