目的探讨外伤性肺假性囊肿的CT诊断和治疗。方法回顾性分析27例外伤性肺假性囊肿患者的临床资料和CT图像。结果 27例外伤性肺囊肿患者全部非手术治愈,无肺内脓肿、局限性肺不张等并发症发生。所有患者在CT上显示为特征性的薄壁囊肿以及气液平面。结论外伤性肺假性囊肿是良性病变,除非发生血气胸或感染等并发症,一般只需保守治疗。CT是早期检测该病变的敏感方法。 Objective To investigate the CT diagnosis and treatment of traumatic pulmonary pseudo cysts. Methods The clinical data and CT images of 27 patients with traumatic pulmonary pseudocyst were retrospectively analyzed. Results All 27 patients with traumatic pulmonary cyst were non-operatively cured, and no complications such as intra-pulmonary abscess and localized atelectasis were found. All patients showed characteristic thin-wall cysts and gas-liquid planes on CT. Conclusion Traumatic pulmonary pseudocyst is a benign lesion, except for the complication of pneumothorax or infection, generally only conservative treatment. CT is an early detection of the disease sensitive method.