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Diseases

Genetic and Rare Diseases Information Center (GARD)

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Cryptogenic organizing pneumonia


Other Names for this Disease
  • COP
  • Idiopathic BOOP
  • Idiopathic bronchiolitis obliterans organizing pneumonia
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Your Question

Is this condition contagious?

Our Answer

We have identified the following information that we hope you find helpful. If you still have questions, please contact us.

Is cryptogenic organizing pneumonia contagious?

Cryptogenic organizing pneumonia (COP) is a non-infectious disease.[1] Although both infectious and non-infectious causes may be associated with the condition (albeit the exact underlying cause in each case is unknown), COP itself is not contagious.
Last updated: 7/16/2015

What causes cryptogenic organizing pneumonia?

The underlying cause of cryptogenic organizing pneumonia (COP) is unknown (idiopathic). Organizing pneumonia is more specifically diagnosed as COP when, among other characteristics, no definite cause for the condition is found. In other words, any known cause for the pneumonia must be ruled out before stating that a person is affected by COP.[2]

Other forms of organizing pneumonia may result from infection (bacteria, viruses, parasites, or fungi); drugs; or a reaction to radiation therapy for breast cancer. Organizing pneumonia can also be associated with specific disorders such as certain connective tissue disorders, blood malignancies (cancers), or ulcerative colitis.[2]
Last updated: 7/16/2015

References
  • Edson Marchiori et al. The Reversed Halo Sign on High-Resolution CT in Infectious and Noninfectious Pulmonary Diseases. American Journal of Roentgenology. July 2011; 197(1):http://www.ajronline.org/doi/full/10.2214/AJR.10.5762. Accessed 3/18/2013.
  • Cordier JF. Cryptogenic organizing pneumonia. Clin Chest Med. December 2004; 25(4):727-738.
Other Names for this Disease
  • COP
  • Idiopathic BOOP
  • Idiopathic bronchiolitis obliterans organizing pneumonia
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.