Abstract
The occasional South African asbestos miner exposed to high concentrations of asbestos dust for approximately more than 10 years may develop radiological evidence of a large opacity. The pathologist is able to identify this change, whether it be in the upper or lower lung regions. The common feature is the presence of hyaline fibrosis with areas of concentric collagenisation, and this lesion could be referred to as “silicoasbestotic fibrosis.” The part that infective processes and other factors play in the production of this lesion remains as yet unsolved.
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