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
...iagnosis
...ts with newly identified ILD whose different...
...h newly identified ILD whose diffe...
...s with newly identified ILD whose...
...ents with newly identified ILD whose differen...
...ents with newly identified ILD whose di...
...with newly identified ILD whose differential d...
...ith newly identified ILD whose differential di...
For patients with newly identified ILD w...
...ents with newly identified ILD whose...
...th newly identified ILD whose differential diagno...
...e 1. Sources of Antigens Known to C...
...ble 2. Recommended Chest HRCT Scanning P...
...ological Terms for Heterogenous Lung AttenuationHa...
...RCT Scan Features of the Nonfibrotic H...
.... “Typical hypersensitivity pneumon...
...e nonfibrotic typical HP pattern is c...
...Chest HRCT Scan Features of the Fibrotic HP...
Figure 2. Three-densi...
...h-resolution computed tomography (A) ins...
...able 6. Histopathological Criteria for the...
Figure 3. Surgical Lung biopsy Specimen from a...
...ification photomicrograph showing p...
...€“C) Poorly Formed Granulomas Characteristic...
...gnification photomicrograph illustrating...
...icrographs of Surgical Lung Biopsy Specimens from...
...nification view showing multiple sections of a r...
...6. Hypersensitivity Pneumonitis Diagnosi...
...ostic Evaluation of Possible Hypersensiti...