煤矽肺在我国煤工尘肺最为常见 ,从煤矽肺的Ｘ线表现中 ,通常煤矽肺结节阴影多散布在中下肺区 ,但在煤工尘肺的诊断中 ,还可发现在上肺区出现病变的Ｘ线表现 :1　资料和方法从近十年依据《尘肺Ｘ线诊断标准及处理原则》(ＧＢ5 90 6 - 86 )所诊断的煤工尘肺中抽选 40例上肺野出? Coal silicosis is the most common coal worker’s pneumoconiosis in our country. From the X-ray manifestations of coal silicosis, the shadow of coal silicosis often spreads in the middle and lower lung area. However, in the diagnosis of coal worker’s pneumoconiosis, it can be found in the upper lung area X-ray findings of lesions: 1 Materials and Methods From the past 10 years, according to “pneumoconiosis X-ray diagnostic criteria and principles” (GB5906 - 86) diagnosed coal workers pneumoconiosis selected 40 cases of lung field out?