Hypersensitivity pneumonitis (also called extrinsic allergic alveolitis) is an inflammation of the lung caused by the body's immune reaction to small air-borne particles. These particles can be bacteria, mold, fungi, or even inorganic. Inflammation is the first response of the immune system to infection or irritation and may be referred to as the innate cascade. ... The lungs flank the heart and great vessels in the chest cavity. ... Subgroups Actinobacteria Aquificae Bacteroidetes/Chlorobi Chlamydiae/Verrucomicrobia Chloroflexi Chrysiogenetes Cyanobacteria Deferribacteres Deinococcus-Thermus Dictyoglomi Fibrobacteres/Acidobacteria Firmicutes Fusobacteria Gemmatimonadetes Nitrospirae Planctomycetes Proteobacteria Spirochaetes Thermodesulfobacteria Thermomicrobia Thermotogae Bacteria (singular: bacterium) are a major group of living organisms. ... Moldy Bread Molds, or mould, are various fungi that cover surfaces in the form of fluffy mycelia and usually produce masses of spores (most commonly asexual spores but sometimes sexual). ... Divisions Chytridiomycota Zygomycota Ascomycota Basidiomycota The Fungi (singular: fungus) are a large group of organisms ranked as a kingdom within the Domain Eukaryota. ... Inorganic chemistry is the branch of chemistry concerned with the properties and reactions of inorganic compounds. ...
The term extrinsicallergicalveolitis refers to a group of lung diseases resulting from exposure to dusts of animal and vegetable origin.
Extrinsicallergicalveolitis does not develop on the first day of exposure to animal and vegetable dusts.
Extrinsicallergicalveolitis, once a person is sensitized, can show three different types of responses: acute (intense) response, sub-acute (recurrent) response, and chronic (long-term) response.
(b) For the purposes of this Statement of Principles, "extrinsicallergicalveolitis" means an immunologically induced inflammation of the lung parenchyma involving mainly the alveoli and terminal bronchioles, which develops secondary to repeated inhalation, by a sensitised subject, of any one of a variety of antigens, attracting ICD code 495.
Extrinsicallergicalveolitis is associated with a restrictive pattern of respiratory function tests.
Paragraphs 5(b) to 5(c) apply only to material contribution to, or aggravation of, extrinsicallergicalveolitis where the person's extrinsicallergicalveolitis was suffered or contracted before or during (but not arising out of) the person's relevant service; paragraph 8(1)(e), 9(1)(e) or 70(5)(d) of the Act refers.
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