病历摘要患者,女性,24岁。因反复发作两大腿疼痛,无力4年,心悸3月,於1989年元月14日入院。患者4年前无明显诱因渐觉两大腿肌肉疼痛,行走费力,登车,攀梯时症状尤著。检查两大腿肌肉有压痛,肌力减退,LDH600单位(正常540单位以下),GOT 70单位(正常40单位以下),CPK正常,肌电图为肌病样改变,心电图正常,诊断为急性多发性肌炎,住院经皮质类固醇等药物治疗,约2个月,肌痛,无力症状消失。此后,病情反复,均按多发性肌炎治疗,症 Patient summary, female, 24 years old. Due to recurrent two leg pain, weakness 4 years, palpitations March, January 14, 1989 admission. 4 years ago, there was no obvious incentive for the patient to feel pain in the two thigh muscles, walking hard, boarding the car, especially when climbing. Check the two thigh muscles have tenderness, muscle weakness, LDH600 units (below normal 540 units), GOT 70 units (normal 40 units below), CPK normal EMG myopathy-like changes, normal ECG, diagnosis of acute multiple Myositis, hospitalized corticosteroids and other drug treatment, about 2 months, myalgia, weakness symptoms disappear. Since then, the disease repeatedly, according to polymyositis treatment, disease