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Immunologic hemorrhagic pneumonia caused by isocyanates
R Patterson1, K M Nugent, K E Harris
1Department of Medicine, Northwestern University Medical School, Chicago, Illinois 60611.
The American Review of Respiratory Disease
|January 1, 1990
Summary
A spray painter developed severe lung disease from isocyanate exposure. Prompt diagnosis and treatment led to recovery, highlighting the importance of considering immunologic causes for acute respiratory illness in occupational settings.
Area of Science:
- Occupational Medicine
- Immunology
- Pulmonary Medicine
Background:
- Acute respiratory failure can arise from occupational exposures.
- Identifying the specific causative agent is crucial for effective treatment.
Observation:
- A 34-year-old spray painter presented with hemoptysis, dyspnea, and respiratory failure.
- Initial investigations for infectious causes and Goodpasture's disease were negative.
Findings:
- Serological tests for trimellitic anhydride (TMA) were negative.
- Elevated IgG and IgE antibodies against hexamethylene diisocyanate (HDI) and toluene diisocyanate (TDI) were detected.
- Exposure to spray paint containing HDI and another isocyanate was confirmed.
Implications:
- This case suggests immunologic hemorrhagic pneumonitis caused by isocyanates (HDI, TDI) is a potential occupational lung disease.
- Early consideration of isocyanate-induced lung disease is vital for affected workers.
- Corticosteroid therapy may be effective in treating such conditions.