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Silicosis can become "complicated" by the development of severe scarring (progressive massive fibrosis, or also known as conglomerate silicosis), where the small nodules gradually become confluent, reaching a size of 1 cm or greater. PMF is associated with more severe symptoms and respiratory impairment than simple disease.
Any references on the internet to pneumonoultramicroscopicsilicovolcanoconiosis or silicosis being caused by 'sharp particles [which] lacerate lining of lungs; causing victim to leak air from their lungs while simultaneously bleeding into their lung cavity' [13] are inaccurate. Particles of a size able to enter the lung (< 10 μm ...
[1] [2] The three most common types are asbestosis, silicosis, and coal miner's lung. [3] Pneumoconiosis often causes restrictive impairment, [4] although diagnosable pneumoconiosis can occur without measurable impairment of lung function. [1] [2] Depending on extent and severity, it may cause death within months or years, or it may never ...
The standard radiographs provide differing types ("shape and size") and severity ("profusion") of abnormalities seen in persons with pneumoconiosis, including Coal Workers’ Pneumoconiosis, silicosis, and asbestosis. The reader then classifies the subject x-ray, often recording the findings on the NIOSH Roentgenographic Interpretation form.
Progressive massive fibrosis (PMF), characterized by the development of large conglomerate masses of dense fibrosis (usually in the upper lung zones), can complicate silicosis [1] and coal worker's pneumoconiosis. [2]
Silicosis results from the inhalation of silica particles, and the formation of large silica nodules is associated with paracicatricial emphysema, with or without bullae. [ 45 ] Ozone-induced emphysema
Caplan syndrome presents with cough and shortness of breath in conjunction with features of rheumatoid arthritis, such as painful joints and morning stiffness. Examination should reveal tender, swollen metacarpophalangeal joints and rheumatoid nodules; auscultation of the chest may reveal diffuse crackles that do not disappear on coughing or taking a deep breath.
When gun flint knapping was a large-scale industry in Brandon, Suffolk, silicosis was widely known as knappers' rot. It has been claimed silicosis was responsible for the early death of three-quarters of Brandon gun flint makers. In one workshop, seven of the eight workers died of the condition before the age of fifty. [3]