Ⅱ期矽肺并发气胸出现酷似心肌梗塞的症状 ,临床上较少见。将我院曾收治出现该症状的患者 1例报道如下。患者男 ,54岁 ,煤炭工人 ,1 974～ 1 975年为井下掘进工 ,接触煤尘 ;1 976～ 1 987年为井下维修工。 1 987年被诊断为患Ⅰ期矽肺 ;1 988年晋升为Ⅱ期。患者因胸痛、胸闷、憋 Stage Ⅱ pneumothorax complicated by pneumothorax appeared symptoms of myocardial infarction, clinically rare. A hospital in our hospital admitted to patients with the symptoms reported as follows. The male patient, 54 years old, was a coal worker from 1974 to 1949. He was a tunneling worker and contacted with coal dust. From 1976 to 1987, he was a downhole maintenance worker. She was diagnosed with stage I silicosis in 1987 and promoted to stage II in 1998. Patients with chest pain, chest tightness, hold back