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Other interstitial pneumonitis / fibrosis

Obliterative bronchiolitis

Reviewers: Elliot Weisenberg, M.D. (see Reviewers page)
Revised: 25 September 2011, last major update September 2011
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● Associated with bone marrow, heart and lung transplants, rheumatoid arthritis, penicillamine or gold therapy and post-viral infection, especially adenovirus
● Associated with chronic rejection in lung transplant patients, an irreversible condition with poor prognosis

Micro description

● May be patchy, fibrosis in submucosa of bronchioles leading to partial or complete occlusion of small airways
● Inflammatory cell infiltrates may or may not be present
● Organizing pneumonia may be present

Micro images

Follicular bronchiolitis that obliterates lumen

End of Lung-nontumor > Other interstitial pneumonitis / fibrosis > Obliterative bronchiolitis

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