桥本氏甲状腺炎（HT）致甲状腺—过性功能亢进和减退较常见，但以多发性肌炎为表现者则少见。现报道1例如下。患者，女性，44岁。以胸闷、气急、心悸3年，加重2周入院。3年来反复发作无明显原因的全身乏力、胸闷、气急、心悸心慌、脚痛，尤以活动及上楼时加重。曾接冠心病治疗? Hashimoto’s thyroiditis (HT) induced hyperthyroidism and hypothyroidism are more common, but polymyositis is rare. 1 case is reported below. Patient, female, 44 years old. To chest tightness, shortness of breath, palpitations 3 years, increased 2 weeks admission. Repeated episodes of 3 years without obvious causes of generalized weakness, chest tightness, shortness of breath, palpitations palpitation, foot pain, especially in activities and increased when going upstairs. Had coronary heart disease treatment?