患者男,38岁,因铁屑击伤前颈部2d,声音嘶哑1d于2005年4月12日入院。查体:左颈根部胸骨切迹上缘有1cm伤口。循环、呼吸系统无明显异常。胸部X线片示上纵隔增宽。CT示左前上纵隔气管旁金属异物,血肿占据纵隔间隙,主动脉弓三支大血管受压移位,左胸腔内少量积液,心影无增大。入院诊 The patient, male, 38 years old, had a hoarse voice on the neck 2 days before he was struck by iron filings and was admitted on April 12, 2005. Physical examination: left cervical sternal notch on the edge of a 1cm wound. Circulation, respiratory system no obvious abnormalities. Chest X-ray showed widened mediastinum. CT showed the left anterior mediastinal tracheal metal foreign bodies, hematoma occupy the mediastinal space, the aortic arch three large vessel pressure shift, a small amount of left chest fluid, no increase in cardiac shadow. Admission