Farmer's Lung Differential Diagnoses

Updated: Oct 19, 2020
  • Author: Laurianne G Wild, MD, FAAAAI, FACAAI; Chief Editor: Zab Mosenifar, MD, FACP, FCCP  more...
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Diagnostic Considerations

Differential diagnosis of farmer's lung depends on the amount, intensity, duration, and frequency of exposure and on the stage of disease at clinical presentation. Diagnostic considerations include the following:

  • Acute hypersensitivity pneumonitis due to farmer's lung

  • Pulmonary edema

  • Bronchoalveolar cell carcinoma

  • Organic dust toxic syndrome

  • Chronic farmer's lung

  • Congestive heart failure

  • Desquamative interstitial pneumonitis

  • Respiratory bronchiolitis - Interstitial lung diseases

  • Chemotherapeutic agents

  • Radiation

  • Inhaled toxins

  • Pneumoconioses

  • Toxic fume bronchiolitis (eg, caused by sulfur dioxide, nitrogen dioxide, ammonia, chlorine, phosgene, ozone)

  • Grain fever

  • Chronic bronchitis

Differential Diagnoses