Which features of hypersensitivity pneumonitis (HP) are associated with a poorer prognosis?

Updated: Oct 08, 2020
  • Author: Caleb Hsieh, MD, MS; Chief Editor: John J Oppenheimer, MD  more...
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Features often associated with poorer prognosis include:

  • Predominantly peripheral fibrosis in a patchy pattern with architectural distortion and fibroblast foci similar to UIP

  • Homogeneous linear fibrosis similar to fibrotic NSIP

  • Irregular predominantly peribronchiolar fibrosis

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