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Hard metal interstitial lung disease: high-resolution computed tomography appearance
Michael B Gotway1, Jeffrey A Golden, Martha Warnock
1Thoracic Imaging Section, Department of Radiology, San Francisco General Hospital, University of California, San Francisco, CA 94110, USA. michael.gotway@radiology.ucsf.edu
Journal of Thoracic Imaging
|October 4, 2002
Summary
Hard metal interstitial lung disease (HM-ILD) is a rare lung condition caused by cobalt dust inhalation. Characteristic HRCT findings and occupational history strongly suggest HM-ILD diagnosis.
Area of Science:
- Pulmonary Medicine
- Occupational Health
Background:
- Hard metal interstitial lung disease (HM-ILD) is a rare occupational lung disease.
- It results from inhaling cobalt-containing particulates during hard metal production or processing.
Observation:
- High-resolution computed tomography (HRCT) reveals specific patterns in HM-ILD.
- Key HRCT findings include reticulation, traction bronchiectasis, and peripheral cystic spaces.
Findings:
- These radiological findings predominantly appear in the mid and upper lung zones.
- A consistent occupational exposure history is crucial for diagnosis.
Implications:
- The combination of HRCT findings and occupational history is highly suggestive of HM-ILD.
- Early diagnosis is vital for managing this occupational lung disease.