Lung - nontumor
Other nonneoplastic disease
Inflammatory bowel disease (IBD)



Topic Completed: 1 October 2011

Revised: 30 January 2019, last major update October 2011

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PubMed search: "inflammatory bowel disease" OR "IBD" lung


Elliot Weisenberg, M.D.
Page views in 2018: 349
Page views in 2019 to date: 331
Cite this page: Weisenberg E. Inflammatory bowel disease (IBD). PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/lungnontumorIBD.html. Accessed July 18th, 2019.
Definition / general
  • Vast majority of patients with lung disease have history of IBD in GI tract, but lung disease may occur without GI disease
  • Lung involvement more common with ulcerative colitis than Crohn's disease
  • Acute or chronic bronchiolitis with nonnecrotizing granulomas, bronchopneumonia, interstitial pneumonia and organizing pneumonia
  • May be due to mesalamine (anti-inflammatory component of sulfasalazine, used to treat IBD)
  • May have CMV or atypical mycobacteria infections
Differential diagnosis
Additional references
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