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过敏性肺炎(HSP)或外源性变应性肺泡炎,是因种种有机粉尘、动物蛋白、化学物质等过敏原的免疫反应而导致的肺部炎症。其病理组织学所见乃是肉芽肿形成的弥漫性间质性肺炎,因呈慢性经过,故随着肺的纤维化而有囊泡形成。作为过敏原的粉尘分布极广泛,人们可因暴露于诸如劳动场所、家庭环境中的种种粉尘而发病。此时,不仅环境因子,同时也与接触者的免疫反应因素相关。已明确过敏原的HSP,以农民肺为代表,报道已有35种左右。如加上以特定粉尘
Allergic pneumonitis (HSP) or extrinsic alveolitis is a type of lung inflammation caused by an immune response to allergens such as organic dusts, animal proteins, and chemical substances. The histopathology seen granulomas but the formation of diffuse interstitial pneumonia, due to chronic after, so as the lung fibrosis and vesicle formation. As an allergen, dust is widely distributed and people can get sick by exposure to various kinds of dust such as in working places and in home environments. At this point, not only environmental factors, but also contact with the immune response factors. Already clear allergen HSP, represented by farmer lung, there are about 35 kinds of reports. As with the specific dust