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Published on: May 9, 2018
Hypersensitivity pneumonitis from ordinary residential exposures
M J Apostolakos1, H Rossmoore, W S Beckett
1Pulmonary and Critical Care Division, Rochester School of Medicine and Dentistry, Rochester, New York 14642, USA. Michael_Apostolakos@urmc.rochester.edu
Abstract:
A previously healthy woman developed hypersensitivity pneumonitis of such severity that she required chronic systemic corticosteroid therapy for symptom control. Detailed investigation of her workplace and home environments revealed fungi in her typical suburban home, to which she had specific serum precipitating antibodies. Efforts to remove mold from the home were unsuccessful in relieving symptoms, and moving to another residence was the only intervention that allowed her to be withdrawn from corticosteroid therapy. Hypersensitivity pneumonitis is commonly associated with occupational or avocational exposures, such as moldy hay in farmers or bird antigen in bird breeders. We propose that hypersensitivity pneumonitis may occur in North America, as it does in Japan, from domestic exposures alone.
Insights
A severe case of hypersensitivity pneumonitis was linked to domestic fungal exposures in a suburban home. Moving residences was the only successful treatment, suggesting home fungi can cause this lung condition.
Area of Science:
- Pulmonary Medicine
- Environmental Health
Background:
- Hypersensitivity pneumonitis (HP) is an immune-related lung disease.
- HP is often linked to occupational or hobby-related exposures.
Observation:
- A previously healthy woman required long-term corticosteroids for severe HP.
- Fungal exposures were identified in her suburban home, with specific antibodies detected.
- Home mold remediation failed to improve her condition.
Findings:
- Complete symptom resolution and corticosteroid withdrawal occurred only after moving to a new residence.
- This case highlights the potential for domestic fungal exposures to cause severe HP.
Implications:
- Hypersensitivity pneumonitis can arise solely from domestic environmental exposures.
- This finding is relevant for diagnosing and managing HP in non-occupational settings.
- Further research into domestic triggers for HP in North America is warranted.
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