A 47-year-old man was incidentally found to have diffuse nodular opacities on chest radiography. He had worked in a quarry for more than 30 years.

中文翻译：

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慢性矽肺

一名47岁男子的胸部X光检查偶然发现有弥漫性结节性混浊。他在采石场工作了 30 多年。