Diagnostic Approach to Advanced Fibrotic Interstitial Lung Disease Bringing Together Clinical, Radiologic, and Histologic Clues
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2017
Autores
Larsen, Brandon T.
Smith, Maxwell L.
Elicker, Brett M.
Fernandez, Jessica M.
Arbo-Oze de Morvil, Guillermo A.
Pereira, Carlos A. C. [UNIFESP]
Leslie, Kevin O.
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Context.-Idiopathic pulmonary fibrosis (IPF) is a distinctive clinicopathologic entity and the most common form of progressive diffuse lung scarring in older adults. Idiopathic pulmonary fibrosis manifests histopathologically as the usual interstitial pneumonia pattern. The usual interstitial pneumonia pattern is distinguished by geographically and temporally heterogeneous fibrosis that is peripherally accentuated, often with honeycombing and traction bronchiectasis. Idiopathic pulmonary fibrosis is not the only disease that leads to end-stage lung fibrosis, however, and several other entities may also cause advanced fibrosis. Surgical lung biopsies often present a diagnostic dilemma when they show clear evidence of advanced fibrosis, but the clinical, imaging, and/or histopathologic subcharacteristics suggest something other than IPF. Objective.-To address this dilemma, we review several other fibrotic lung diseases, including connective tissue disease-associated interstitial lung disease, chronic hypersensitivity pneumonitis, advanced pulmonary Langerhans cell histiocytosis, end-stage pulmonary sarcoidosis, Erdheim-Chester disease, Hermansky-Pudlak syndrome, and others, detailing their clinical, radiologic, and histopathologic attributes and emphasizing similarities to and differences from IPF. Data Sources.-Data sources comprised published peer-reviewed literature and personal experience of the authors. Conclusions.-Often, clues in the lung biopsy may offer the first suggestion of a fibrotic lung disease other than IPF, and accurate classification is important for prognosis, treatment, and the development of future therapies.
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Archives Of Pathology & Laboratory Medicine. Northfield, v. 141, n. 7, p. 901-915, 2017.