Completely revised and updated, the second edition of this authoritative guide provides the latest information on the diagnosis, treatment, and ongoing management of pulmonary issues in children. Available for purchase at https://www.aap.org/Pediatric-Pulmonology-2nd-Edition-Paperback
10: Hypersensitivity Pneumonitis
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Published:November 2023
Katharine Kevill, MD, MHCDS, FAAP, "Hypersensitivity Pneumonitis", Pediatric Pulmonology, American Academy of Pediatrics Section on Pediatric Pulmonology and Sleep Medicine, Michael J. Light, MD, FAAP, Kristin Van Hook, MD, MPH, FAAP
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Hypersensitivity pneumonitis (HP) is a complex disorder with variable clinical presentation, intensity of symptoms, and natural history. It results from immunologically mediated inflammation of the lung parenchyma in response to an array of inhaled antigens.1 Hypersensitivity pneumonitis is also known as extrinsic allergic alveolitis1 and has been described as a “group of granulomatous, interstitial, bronchiolar, and alveolar-filling pulmonary diseases.”2 Initially, HP was thought to be an adult disease resulting from occupational exposure to environments such as moldy hay (farmer’s lung), moldy maple bark (maple bark stripper’s lung), and pigeon breeding. Hypersensitivity pneumonitis was...
