Organizing pneumonia: what is it? A conceptual approach and pictorial review

Diagn Interv Imaging. 2014 Sep;95(9):771-7. doi: 10.1016/j.diii.2014.01.004. Epub 2014 Feb 18.


Organizing pneumonia (formerly named bronchiolitis obliterans with organizing pneumonia or BOOP) is a clinical, radiological and histological entity that is classified as an Interstitial Lung Disease. The understanding of this family of diseases has seen great progress over the past twenty years. CT presentation of organizing pneumonia is polymorphous but a few patterns have been recently recognized as being more specific to this diagnosis. The aim of this work is to summarize new understandings of the clinical and histological presentation of the disease and to review the most relevant CT features.

Keywords: Interstitial lung disease; Lung HRCT; Organizing pneumonia; Review.

Publication types

  • Review

MeSH terms

  • Cryptogenic Organizing Pneumonia / diagnostic imaging*
  • Cryptogenic Organizing Pneumonia / pathology
  • Humans
  • Lung / diagnostic imaging
  • Lung / pathology
  • Lung Diseases, Interstitial / diagnostic imaging
  • Lung Diseases, Interstitial / etiology
  • Lung Diseases, Interstitial / pathology
  • Risk Factors
  • Tomography, X-Ray Computed*