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
...agnosis...
...patients with newly identified IL...
...ients with newly identified ILD whose di...
...ents with newly identified ILD whose differenti...
...patients with newly identified ILD whose...
...s with newly identified ILD whose...
...ith newly identified ILD whose differen...
...r patients with newly identified ILD...
...tients with newly identified ILD whose di...
...s with newly identified ILD whose differenti...
...th newly identified ILD whose differen...
...Sources of Antigens Known to Cause HPHaving troub...
...e 2. Recommended Chest HRCT Scanning Paramet...
...ological Terms for Heterogenous Lung Attenuatio...
...HRCT Scan Features of the Nonfibrot...
...re 1. “Typical hypersensitivity pneumonit...
...tic typical HP pattern is characterized by (A)...
Table 5. Chest HRCT Scan Features of the...
...igure 2. Three-density Patte...
...esolution computed tomography (A) inspiratory and...
...6. Histopathological Criteria for the...
...3. Surgical Lung biopsy Specimen from a...
...ation photomicrograph showing preserv...
...gure 4. (A–C) Poorly Formed Granulom...
...) High-magnification photomicrograph illust...
...5. Photomicrographs of Surgical Lun...
...ing magnification view showing mul...
Figure 6. Hypersensitivity Pneumonitis Dia...
...stic Evaluation of Possible Hypersensitivity P...