- Understanding COPD
- COPD (Chronic Obstructive Pulmonary Disease) Quiz
- Energizing COPD Diet Foods
- Patient Comments: Asbestos - Asbestosis Signs
- Patient Comments: Asbestos - Asbestosis Diagnosis
- Find a local Pulmonologist in your town
- Asbestos-related disorders facts
- What is the definition of asbestos?
- What are the types of asbestos-related lung disease?
- What are the types of asbestos fibers?
- What does fiber size have to do with asbestos-related lung disease?
- What is asbestosis?
- What are symptoms and signs of asbestosis?
- What tests and studies are used to evaluate asbestosis?
- How is asbestosis treated?
- What is pleural disease?
- Does asbestos exposure cause lung cancer?
- What is malignant mesothelioma?
- What other cancers have been linked to asbestos exposure?
- How can exposure to asbestos be reduced?
- What kind of asbestos is used today?
What is asbestosis?
Asbestosis is a process of lung tissue scarring caused by asbestos fibers. Because many other diseases also lead to lung scarring, other causes must be excluded first when a patient is found to have lung scarring (pulmonary fibrosis). Patients with particular X-ray findings or biopsy results must also have a remote history of asbestos exposure and a characteristically delayed development of the condition in considering asbestosis as a diagnosis. Smoking appears to increase the frequency and/or the rate of progression of asbestosis, possibly by preventing the efficient elimination of inhaled fibers from the airways.
What are symptoms and signs of asbestosis?
The clinical symptoms usually include slowly progressing shortness of breath and cough, often 20 to 40 years after exposure to asbestos. Breathlessness advances throughout the disease, even without further asbestos inhalation. In the absence of cigarette smoking, sputum (mucus coughed up from the lungs) production and wheezing are uncommon. The exception is workers who have been exposed to very high concentrations of asbestos fibers. Those workers may also develop symptoms as soon as 10 years after exposure. Other indications of asbestosis include abnormal lung sounds on examination, changes in the ends of the fingers and toes ("clubbing"), a blue tinge to the fingers or lips ("cyanosis"), and failure of the right side of the heart ("cor pulmonale").