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Making an accurate diagnosis of chronic hypersensitivity pneumonitis |
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| Authors: | Kerri A Johannson Christopher J Ryerson |
| Affiliation: | 1Departments of Medicine; University of Calgary, Calgary, Alberta;;2University of California San Francisco, San Francisco;;3School of Public Health, University of California, Berkeley, Berkeley, California, USA;;4Centre for Heart Lung Innovation & Department of Medicine, University of British Columbia, Vancouver, British Columbia |
| Abstract: | Chronic hypersensitivity pneumonitis (HP) arises from repeated exposure to causative antigens. Although HP can be challenging to diagnose, it is important to differentiate from idiopathic pulmonary fibrosis and idiopathic non-specific interstitial pneumonia. HP has a unique management approach and portends a unique prognosis. The present article summarizes the recent published literature on chronic HP and highlights the features that may be helpful in distinguishing it from other chronic interstitial lung diseases. |
| Keywords: | Hypersensitivity pneumonitis Interstitial lung disease Review |