皮肌炎属自身免疫性结缔组织病,是一种主要累及横纹肌,以淋巴细胞浸润为主的非化脓性炎症病变,可多系统受累,但纵隔气肿和皮下气肿极少见,我院收治1例皮肌炎并发气胸、纵隔气肿及皮下气肿,现报道如下。患者女性,60岁。因肩背部皮疹伴发热半年,胸闷伴皮下气肿2d于2008年6月9日收 Dermatomyositis is an autoimmune connective tissue disease, is a mainly involving striated muscle, lymphocytic infiltration of non-suppurative inflammatory disease, may be involved in multiple systems, but mediastinal emphysema and subcutaneous emphysema are rare, our hospital Treatment of 1 case of dermatomyositis complicated with pneumothorax, mediastinal emphysema and subcutaneous emphysema are reported below. Patient female, 60 years old. Due to shoulder rash with fever for six months, chest tightness with subcutaneous emphysema 2d on June 9, 2008 closed