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
...Diagnosis...
...ients with newly identified ILD whose di...
...patients with newly identified ILD...
...ith newly identified ILD whose differential diag...
...nts with newly identified ILD whose differential d...
...r patients with newly identified ILD who...
...with newly identified ILD whose diffe...
...th newly identified ILD whose differentia...
...ith newly identified ILD whose differenti...
...or patients with newly identified ILD whose differ...
...ith newly identified ILD whose diff...
...le 1. Sources of Antigens Known to...
...nded Chest HRCT Scanning Parameter...
...diological Terms for Heterogenous Lung...
...t HRCT Scan Features of the Nonfibrotic...
...ypical hypersensitivity pneumonitis (...
...he nonfibrotic typical HP pattern is characteriz...
...Chest HRCT Scan Features of the Fibro...
...re 2. Three-density Pattern...
...computed tomography (A) inspiratory and (B) expi...
...athological Criteria for the Diagnos...
...ure 3. Surgical Lung biopsy Specimen from a Patie...
...cation photomicrograph showing preservation of...
...4. (A–C) Poorly Formed Granulomas C...
...cation photomicrograph illustrating i...
...Photomicrographs of Surgical Lung B...
...nning magnification view showing multiple sections...
...gure 6. Hypersensitivity Pneumonitis Diagnosi...
...nostic Evaluation of Possible Hyperse...