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五十年代,Caplan首先报道有类风湿关节炎的煤矿工人可患类风湿尘肺,以后陆续报道也见于其他粉尘作业。其X线特征是两肺见多发性、边缘清楚、直径0.5～5.0厘米的圓型阴影,尤以肺外侧带为多。作者报道一例接触云石11年后发生类风湿尘肺的情况。患者女性,46岁,无吸烟习惯。1964～1974年在云石矿当产品装袋工和清洁工。1971年患类风湿关节炎,先是右肘关节疼痛、肿胀,一年内波及掌指关节、远端指间关节、双膝关节和跖趾关节。类风湿因子阳性,ESR40～50毫米/小时。无呼吸道症状。1973年和1978年胸部X线均正常。1981年胸片见右肺尖有圆形阴影。痰反复涂片、培养结
In the 1950s, Caplan first reported that coal miners with rheumatoid arthritis may have rheumatoid pneumoconiosis, and later reported that they are also found in other dusty operations. The X-ray features of both lungs to see multiple, clear edge, a diameter of 0.5 to 5.0 cm round shadow, especially in the lateral lung band. The authors report a case of rheumatoid pneumoconiosis occurring 11 years after exposure to marble. Female patient, 46 years old, non-smoking habit. 1964 ~ 1974 in the marble mine as a product bagger and cleaners. 1971 suffering from rheumatoid arthritis, first right elbow joint pain, swelling, spread to the metacarpophalangeal joint, distal interphalangeal joint, double knee joint and metatarsophalangeal joint within a year. Rheumatoid factor positive, ESR 40 ~ 50 mm / h. No respiratory symptoms. The chest X-ray was normal in 1973 and 1978. In 1981 the chest radiograph showed a circular shadow on the right apex. Sputum repeated smear, culture knot