Diagnosis of Hypersensitivity Pneumonitis in Adults
Key Points
Key Points
- Hypersensitivity pneumonitis (HP) must be considered in the differential diagnosis for patients with newly identified interstitial lung disease (ILD).
- This guideline committee categorized HP into two clinical phenotypes—nonfibrotic and fibrotic HP—and made separate recommendations for each.
- makes no recommendation or suggestion for or against the use of a questionnaire to identify potential HP inciting agents and sources. Instead, the guideline committee recommends development and validation of a questionnaire.Remark: Pending the availability of a validated questionnaire, the guideline committee advocates that clinicians take a thorough history to identify potential exposures and sources in the patient's environment that are known to be associated with HP.
- makes no recommendation or suggestion for or against the use of a questionnaire to identify potential HP inciting agents and sources. Instead, the guideline committee recommends development and validation of a questionnaire.
Remark: Pending the availability of a validated questionnaire, the guideline committee advocates that clinicians take a thorough history to identify potential exposures and sources in the patient’s environment that are known to be associated with HP.
Diagnosis
...Diagnos...
...patients with newly identified ILD whose...
...atients with newly identified ILD whose differ...
...with newly identified ILD whose differential dia...
...ients with newly identified ILD whose diffe...
...s with newly identified ILD whose differential dia...
...patients with newly identified ILD whose differen...
...ith newly identified ILD whose differ...
...patients with newly identified ILD wh...
...th newly identified ILD whose differential diagn...
...nts with newly identified ILD whose d...
...Sources of Antigens Known to Cause HPH...
...2. Recommended Chest HRCT Scanning Para...
...ble 3. Radiological Terms for Heterogenous Lung A...
...HRCT Scan Features of the Nonfibrotic HP PatternHa...
Figure 1. “Typical hypersensitivity pneumo...
...fibrotic typical HP pattern is characterized...
Table 5. Chest HRCT Scan Features of th...
...2. Three-density Patt...
...olution computed tomography (A) inspirat...
...e 6. Histopathological Criteria for the...
...3. Surgical Lung biopsy Specimen f...
...A) Low-magnification photomicrograph...
...C) Poorly Formed Granulomas Characteristic of...
...magnification photomicrograph illustrating isola...
...5. Photomicrographs of Surgical Lung Biops...
...Scanning magnification view showing multiple sect...
...Hypersensitivity Pneumonitis Diagnosis Base...
...igure 7. Diagnostic Evaluation of Possi...