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Hypersensitivity pneumonitis

Alternative Names:
Extrinsic allergic alveolitis; Farmer's lung; Mushroom picker's disease; Humidifier or air-conditioner lung; Bird breeder's lung

Symptoms:

Acute hypersensitivity pneumonitis may have the following symptoms:

Chronic hypersensitivity pneumonitis may have the following symptoms:

  • Breathlessness, especially with exertion
  • Cough, often dry
  • Loss of appetite
  • Unintentional weight loss


Signs and tests:

Crackles (rales) may be heard when a stethoscope is used to examine the chest.

Tests include the following:



Review Date: 5/7/2003
Reviewed By: David A. Kaufman, M.D., Pulmonary & Critical Care Medicine, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network.

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