Paul A. Greenberger, MD Journal of Allergy and Clinical Immunology

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Presentation transcript:

Hypersensitivity pneumonitis: A fibrosing alveolitis produced by inhalation of diverse antigens Paul A. Greenberger, MD Journal of Allergy and Clinical Immunology Volume 143, Issue 4, Pages 1295-1301 (April 2019) DOI: 10.1016/j.jaci.2018.09.040 Copyright © 2018 American Academy of Allergy, Asthma & Immunology Terms and Conditions

Fig 1 The diagnosis of HP depicted in clinical, histologic, and BAL findings. NSIP, Nonspecific interstitial pneumonitis. Journal of Allergy and Clinical Immunology 2019 143, 1295-1301DOI: (10.1016/j.jaci.2018.09.040) Copyright © 2018 American Academy of Allergy, Asthma & Immunology Terms and Conditions

Fig 2 Lung parenchyma with aggregate of histiocytes consistent with a loose granuloma of HP (×200 magnification). Courtesy of Anjanda V. Yeldandi, MD, Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois. Journal of Allergy and Clinical Immunology 2019 143, 1295-1301DOI: (10.1016/j.jaci.2018.09.040) Copyright © 2018 American Academy of Allergy, Asthma & Immunology Terms and Conditions

Fig 3 Lung parenchyma with thickening (expansion) of the alveolar septae by the interstitial lymphocytic infiltrates of HP (×100 magnification). Courtesy of Anjanda V. Yeldandi, MD, Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois. Journal of Allergy and Clinical Immunology 2019 143, 1295-1301DOI: (10.1016/j.jaci.2018.09.040) Copyright © 2018 American Academy of Allergy, Asthma & Immunology Terms and Conditions