Abstract：
Hypersensitivity pneumonia (HP) refers to a heterogeneous group of interstitial lung diseases resulting from a non-IgE immune-mediated reaction to inhaled pathogens in susceptible and sensitized hosts. Environmental and genetic factors are important substrates of disease pathogenesis. A recurrent or ongoing airborne exposure results in activation of humoral and cellular immune responses. This article discusses key clinical, radiologic, and histopathologic features of HP and reviews current recommendations.
摘要：
超敏反应性肺炎(HP)是指由易感和致敏宿主中对吸入病原体的非IgE免疫介导的反应引起的一组间质性肺病。环境和遗传因素是疾病发病的重要基础。反复或持续的空气传播暴露导致体液和细胞免疫应答的激活。本文讨论了关键的临床，放射学,和HP的组织病理学特征，并回顾目前的建议。
