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Fibrosing organising pneumonia
Brooke Beardsley1, Doris Rassl
1Department of Anatomical Pathology, Canterbury Health Laboratories, , Christchurch, New Zealand.
Journal of Clinical Pathology
|July 9, 2013
Summary
Organising pneumonia, also known as bronchiolitis obliterans organising pneumonia, presents as granulation tissue in small airways. This inflammatory lung response often improves with corticosteroid treatment, though some cases may progress to fibrosis.
Area of Science:
- Pulmonary Medicine
- Pathology
Background:
- Organising pneumonia is characterized by granulation tissue plugs in small airways and alveoli.
- This histological pattern represents a non-specific inflammatory response to lung injury.
- It can occur in various clinical conditions.
Purpose of the Study:
- To describe the histological characteristics of organising pneumonia.
- To highlight its non-specific nature as an inflammatory response.
- To note its typical response to corticosteroid treatment and potential for fibrosis.
Main Methods:
- Histological examination of lung tissue.
- Clinical correlation of findings.
- Review of treatment responses.
Main Results:
- Presence of granulation tissue plugs in small airways, alveolar ducts, and peri-bronchiolar alveoli.
- Organising pneumonia is a pattern of response, not a specific disease.
- Most patients respond well to corticosteroid therapy.
Conclusions:
- Organising pneumonia is a histological pattern of lung injury response.
- Corticosteroids are typically effective, but progressive fibrosis can occur in a subset of patients.
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