Chronic Hypersensitivity Pneumonitis
Also written as HP.
It may present as an isolated idio\npathic pulmonary condition but is often associated with connective\ntissue disease, drugs, chronic hypersensitivity pneumonitis and HIV\ninfection, and pulmonary symptoms may precede the appearance of\nconnective tissue disease.
What our notes say
- It may present as an isolated idio\npathic pulmonary condition but is often associated with connective\ntissue disease, drugs, chronic hypersensitivity pneumonitis and HIV\ninfection, and pulmonary symptoms may precede the appearance of\nconnective tissue disease. (Davidson's Essentials of Medicine - 2nd)
- is the most common cause of pediatric HP and has been acute exacerbations in chronic hypersensitivity pneumonitis.\nChest 134:1265, 2008 (Harrisons Pulmonary and Critical Care Medicine)
- | Chronic hypersensitivity pneumonitis | Farm/bird exposure, acute flu‑like episodes 4‑8 h after exposure, granulomas | Lymphocytosis > 30 % on BAL; precipitating antibodies | (Occupational Lung Disease)
- regions with reduced compliance because of either fibro- particularly chronic hypersensitivity pneumonitis, COP, (Harrisons Pulmonary and Critical Care Medicine)
- Chronic Hypersensitivity Pneumonitis:\nmoldy hay causing Called extrinsic allergic\nCharacterized by insidious onset cough, alveolitis\n“farmer’s lung” dyspnea, malaise, and weight loss. (3 - Summary and MCQs)