Asbestosis

Asbestosis is a form of interstitial fibrosis of the lung. It is asbestos exposure related disease. Asbestosis is a type of pneumoconiosis.

Pathology
After asbestos fibers are breath into alveols, the fibers provoke immune cells in lungs and cause inflammatory reaction. A part of this reaction is fibrogenesis in interstitial space. It seems to be histologicaly similar like the other interstitial pulmonary fibrosis, but it contains ferruginous bodies too.

Patient history
Asbestosis depends on exposure time. This disease is progressive and long involved. Can be found 20 years after exposure, when the symptoms became clear. It is very important to find out patient's exposure possibilities:

Occupational exposure

 * workers in the manufacture of asbestos products;
 * asbestos miners and millers;
 * construction traders;
 * power plant workers;
 * boilermakers;
 * shipyard workers;
 * firefighters.

Non-occupational exposure
Asbestos was used in walls of building. For example schools. Than teachers, which work in these buildings (many years–whole professional life) could be in danger too.

Symptoms

 * shortness of breath – first when walking, climbing stairs, than at rest (asbestosis is progressive disease);
 * cough ;
 * low blood oxygen level.

The most often complication is COPD, respiratory insufficiency, pulmonary hypertension, cor pulmonale.

Diagnostic

 * physical examination, lung function tests;
 * X–ray;
 * CT or MRI;
 * lung biopsy;
 * definitive diagnosis is based on microscopical examination of the biopsy by pathologist!

Therapy
There is only supportive therapy of progressive respiratory failure:
 * treatment of COPD (bronchodilatans, corticosteroids...);
 * oxygenotherapy;
 * and finally lung transplantation.

Related articles

 * Asbestos