外伤性肺囊肿又称外伤性肺大泡或外伤性肺空腔 ,为一种少见疾病 ,我院曾收治 1例 ,现报告如下。1　病例报告男 ,31岁。于 1996年 9月 2 0日晚被刀刺右后背部 ,当时伤口流血 ,局部剧痛 ,稍感呼吸困难 ,伤后无咳嗽及咳血。体检 :体温 37.2℃ ,脉搏 80次 /分 ,血压 13.3/ 10 .7k P Traumatic pulmonary cysts, also known as traumatic bullae or traumatic lung cavity, is a rare disease, our hospital had admitted 1 case, are as follows. 1 case report Male, 31 years old. On the night of September 20, 1996, she was stabbed in the back of her right back. At that time, the wound bleed, local pain, and slight dyspnea without cough and hemoptysis after injury. Physical examination: body temperature 37.2 ℃, pulse 80 beats / min, blood pressure 13.3 / 10 .7k P