CT与X线平片对巨大肺大泡诊断的对比评价

目的探讨巨大肺大泡胸部X线平片和CT的诊断价值及与局限性气胸的鉴别诊断。方法对6例经手术证实的巨大肺大泡进行回顾性分析,患者行X线胸片和胸部CT扫描。结果病灶体积占整个胸腔30%～80%,4例病灶位于左侧胸腔,2例病灶位于右侧胸腔。其中有3例胸部X线平片误诊为局限性气胸。胸部CT能显示巨大肺大泡的内部结构、肺大泡壁及正常肺组织的受压情况。结论巨大肺大泡易于误诊,胸部CT检查对正确诊断巨大肺大泡具有重要的意义。

Comparative Study of CT and X-ray Plain Film in Diagnosis of Giant Pulmonary Bullae

Objective To investigate the disgnostic value of thoracic CT and X-ray plain film in giant bulla and its differential diagnosis with pneumothorax.Methods 6 patients with surgical proved giant pulmonary bulla were analyzed retrospectively,all patient underwent chest radiography and CT scan.Results The lesions occupied 30%~80% of thoracic cavity,4 cases lied left thoracic cavity and 2 cases lied right thoracic cavity.3 cases were misdiagnosed as pneumothorax by X-ray plain film.CT could show the wall and internal condition of bulla as well as compression of the normal pulmonary tissue.Conclusion Giant pulmonary bulla is easily misdiagnosed,thoracic CT is of significant value in diagnosis of giant bulla.