气管憩室的螺旋CT诊断及相关误诊分析  

Tracheal Diverticulum： Multi--slice Spiral CT Diagnosis and the Factors Related to Its Misdiagnosis

作　　者：沈亚芝 朱时锵 方雄 王朝君 蒋碧虎 

机构地区：[1]浙江省奉化市人民医院放射科,浙江奉化315500

出　　处：《实用放射学杂志》2010年第5期664-667,共4页Journal of Practical Radiology

摘　　要：目的 探讨气管憩室的螺旋CT表现及误诊原因.方法 回顾性分析91例气管憩室的MSCT表现.结果 91例气管憩室均位于胸腔入口区气管右旁6～9点区域,CT均表现为形态不一含气囊腔,囊壁外缘光整,内缘光整或不整,囊内可有皱襞样结构或分隔状改变（41/91）,与气管关系密切,可见与气管间的交通（27/91）,相应气管腔轻度扩大、变形（12/91）.结论 胸腔入口区与气管关系密切的含气囊腔为气管憩室的典型CT征象,囊内皱襞样结构与分隔状改变对鉴别诊断有重要价值.Objective To investigate the multi--slice spiral CT （MSCT） features and the causes of misdiagnosis of tracheal diverticulum. Methods MSCT features of tracheal diverticula were in 91 cases retrospectively reviewed. Results All 91 tracheal diverticula were located in 6 to 9 clock point of the trachea at the level of superior aperture of thorax. In all the cases, air--containing cysts of different shape were seen on CT, with smooth outer layer, smooth or irregular inner layer, and plica-- or septum-- like structures in the cysts （41/91） were also seen. The diverticulas were closely related to the trachea and communicated with the trachea （ 27/91 ） ,and the corresponding tracheal lumens were mildly enlarged or deformed（ 12/91 ）. Conclusion The characteristic CT sign of tracheal diverticula is the air--containing cysts which had close relationship with the trachea at the level of superior aperture of thorax. The plica-- or septum--like structures are considerable values in the differential diagnosis of this disease.

关 键 词：胸部 气管憩室 体层摄影术 X线计算机 

分 类 号：R562.1[医药卫生—呼吸系统] R814.42[医药卫生—内科学]