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Asbestosis
Aka: Asbestosis
- See Also
- Asbestos
- Pleural Plaques
- Mesothelioma
- Epidemiology
- Prevalence: 200,000 in U.S.
- Mortality: 2,000 deaths per year in U.S
- Pathophysiology
- Fibrotic lung disease secondary to Asbestos inhalation
- Symptoms
- Dry, non-productive cough
- Exertional Dyspnea
- Signs
- Auscultory rales
- Imaging
- Chest XRay
- Interstitial markings increased (esp. lower lobes)
- Pleural Plaques may be present
- Consider Chest CT
- Interstitial markings increased as on Chest XRay
- Honeycomb appearance
- Diagnostics
- Pulmonary Function Tests
- Initial
- Decreased DLCO (diffusion capacity)
- Decreased ambulatory Oxygen Saturation
- Later
- Restrictive lung disease
- Decreased Vital Capacity of Total Lung Capacity
- Lung biopsy
- Not indicated in most cases
- Interstitial Pneumonia findings (same as IPF)
- Asbestos bodies seen on iron staining
- Asbestos body quantity correlates with severity
- Differential diagnosis
- Idiopathic Pulmonary Fibrosis
- IPF is a more rapid progression
- Pulmonary fibrosis due to collagen vascular disease
- Associated conditions
- Pleural Plaques
- Lung Cancer
- Use high index of suspicion
- Management
- No specific management
- Tobacco Cessation
- References
- O'Reilly (2007) Am Fam Physician 75:683-90
- (2004) Am J Respir Crit Care Med 170:691-715