pneumoconiosis


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pneumoconiosis

(no͞o'məkō'nēō`sĭs), chronic disease of the lungs. Primarily an occupational disease of miners, sandblasters, and metal grinders, it is a result of repeated inhalation of dusts, including iron oxides (e.g., rust and filings), silicates (e.g., talc and rock dust), and carbonates (especially coal dust). Particles collect in the lungs and become sites for the formation of fibrous nodules. As the disease progresses, fibrous tissue increasingly replaces elastic lung tissue. Loss of lung function is signaled by shortness of breath, wheezing, coughing, and difficulty in expectorating. A heart deficiency called cor pulmonale may develop in severe cases. Sufferers are particularly vulnerable to infectious lung diseases such as tuberculosis. Pneumoconiosis is incurable and treatment is purely symptomatic. Because the inhaled dusts cause darkening of the lung tissue, the disease is also known as black lung. Silicosis, the form of the disease prevalent among miners, is commonly called miner's lung.

pneumoconiosis

[¦nü·mō‚kō·nē′ō·səs]
(medicine)
Any lung disease caused by dust inhalation.
References in periodicals archive ?
Hundreds of ex-quarrymen in the area suffered the effects of slate-dust; not to mention the widows of those who had died from pneumoconiosis.
([dagger][dagger][dagger]) The number of pneumoconiosis deaths due to other dust containing silica and due to talc dust among young adults remained stable during 1999-2015 (Table 1).
Especially the poor quality of the radiographs has been shown to increase the inter observer discrepancies in the assessment of pneumoconiosis. It has been observed that the low-dose chest x-ray of the overweight individuals appear to be misinterpreted due to increased thickness of the chest.2 It is emphasized that the interpretation of chest radiography with proper techniques is a valuable method in the diagnosis of occupational diseases.
Pneumoconiosis: comparison of imaging and pathologic findings.
"Coal workers' pneumoconiosis is an entirely preventable disease.
Anthracosis, a form of pneumoconiosis, is most commonly seen in coal miners, and it is also caused by environmental factors such as air pollution, biomass smoke, and cigarette smoke.
A total of 138 patients with coal worker's pneumoconiosis and 100 exposure control subjects were recruited from the Department of Pneumoconiosis at the Shanghai Pulmonary Hospital of Tongji University School of Medicine between January 2010 and December 2012.
Medical camps were arranged in study areas in which Pulmonary Function Tests and CXR was conducted to estimate the prevalence of pneumoconiosis. The demographic variables were also noted on a semi structured proforma.
This also halves the standard to 0.5 from 1 for certain mine entries and miners with pneumoconiosis. Dust samples, meanwhile, will now be mandated whenever mines operate at 80% of production--up from 50%; the new level, MSHA officials said, is "more representative of actual working conditions."
Extraordinary, and a little unbelievable now, that men worked in these conditions of dirt, dust and toil with no breathing apparatus to be seen (pneumoconiosis would be the price many paid).
He spelled out pneumoconiosis, the medical term for black lung disease.
He had underlying illnesses, including tuberculosis and pneumoconiosis.