过敏性肺炎过敏性肺炎系指由于反复吸入真菌孢子、细菌、鸟类蛋白、二异氰酸盐等有机或无机的尘埃，而诱发的从细支气管到肺泡的Ⅲ型与Ⅳ型的变态反应，其结果造成弥漫性肉芽肿性间质性肺炎，因此又称外源性过敏性肺炎。引发本病的生活环境与诱发病理过程的各种尘埃（抗原... Allergic pneumonia Allergenic pneumonia refers to type III and type IV allergy caused by repeated inhalation of organic or inorganic dusts such as fungal spores, bacteria, avian proteins, and diisocyanates, from the bronchioles to the alveoli, The result of diffuse granulomatous interstitial pneumonia, it is also known as exogenous allergic pneumonia. Lead to the disease of the living environment and induced by various pathological processes of dust (antigen ...