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Challenges in pulmonary fibrosis: 6 · Problematic granulomatous lung disease
  1. J L Myers1,
  2. H D Tazelaar2
  1. 1
    The University of Michigan Medical School, Ann Arbor, Michigan, USA
  2. 2
    Mayo Clinic College of Medicine, Mayo Clinic Arizona, Scottsdale, Arizona, USA
  1. Dr J L Myers, Mayo Clinic, 200 First Street SW, Rochester, Michigan 55905, USA; myers.jeffrey{at}


Granulomatous inflammation in lung biopsies is a relatively non-specific finding that can occur in a range of inflammatory and neoplastic conditions. This review focuses on the patterns of granulomatous inflammation that can cause diffuse lung disease, highlighting histopathological features helpful in differential diagnosis.

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  • Funding: None.

  • Competing interests: None.