3/14/2024 0 Comments Asbestos exposure x-ray pictures![]() ![]() When such visceral plaques are present, they are typically associated with underlying parenchymal abnormalities and extensive pleural disease 1,2. Visceral pleura may also be involved infrequently. They are also frequently found arising from the mediastinal pleura. Pleural plaques typically arise from the parietal pleura, most frequently from the lower portions of the chest, sparing the apices and costophrenic angles. Although asbestos fibers are sometimes seen, asbestos bodies are not a feature 1,3. The collagen is usually arranged in a loose 'basket-weave' pattern. Microscopically, they are composed of dense hyalinised collagen and are relatively acellular. Macroscopically, pleural plaques appear as grey-white regions of pleural thickening, often thickest at the margins, giving rise to the holly leaf appearance (aside from the color of course). Pathologyįibers are thought to reach the pleural space via the lymphatic system. Pleural plaques are asymptomatic and incidentally found on radiography of the chest. As asbestos is primarily used in construction and machinery environments, asbestos-related diseases in general, including pleural plaques, are primarily seen in men. There is an extremely long latency (typically 20 to 30 years) after the onset of exposure 1. Pleural plaques are strongly associated with inhalational exposure to asbestos. ![]()
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