Hypersensitivity pneumonitis

  title={Hypersensitivity pneumonitis},
  author={Lawrence C. Mohr},
  journal={Current Opinion in Pulmonary Medicine},
  • L. Mohr
  • Published 1 September 2004
  • Medicine, Biology
  • Current Opinion in Pulmonary Medicine
Purpose of review Hypersensitivity pneumonitis (HP), also known as extrinsic allergic alveolitis, is a granulomatous, inflammatory disease of the lungs caused by the inhalation of antigenic organic particles or fumes. The disease may present as an acute, subacute, or chronic illness. Episodes of acute and subacute HP usually resolve following cessation of antigen exposure. Chronic HP may be progressive, irreversible, and result in debilitating fibrotic lung disease. This review discusses… 

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