圆形肺不张的影像学诊断  

Imaging Diagnosis of Round Atelectasis

作　　者：赵锡立[1] 冯健[1] 周青[1] 王志学[1] 

机构地区：[1]河南大学第一附属医院放射科,河南开封475001

出　　处：《实用放射学杂志》2004年第2期128-129,132,共3页Journal of Practical Radiology

摘　　要：目的　探讨圆形肺不张的影像学表现及诊断价值。方法　 4例均有完整的临床以及胸部平片和CT检查资料 ,均经病理证实。分析其影像学表现。结果　 4例病变均呈圆形或椭圆形肿块 ,直径 2 .6～ 6.5cm大小 ,境界清楚 ,位于肺下叶外周胸膜下 ,均合并有胸膜增厚 ,肿块与增厚的胸膜呈锐角。肿块邻近肺透亮度增强 ,并可见包含血管及支气管的弯曲条纹影进入肿块 ,使肿块肺门侧边缘模糊。 3例可见“慧星尾征”及支气管气相。结论　胸部X线平片及CT扫描具有典型表现 。Objective To study the imaging manifestati ons and diagnostic evaluation of rounded atelectasis.Methods Imaging manifestation of round atelectasis in 4 c ases confirmed by pathology with complete clinical data,plain chest radiographs and CT were analysed.Results The lesions in 4 cases appeared as circular or el liptic masses with clear boundary,2.6～6.5 cm in diameter,located at subpleura o f lower lobule of lung,accompanied with pleural thickening.There was a acute angl e between the tumor and thickened pleura.The lucency of the lung adjacent to tum or incneased.The cordike structures consisted of blood vessels and bronchil ente red into tumors,which made the lateral boundary of tumor to hilum of lung obscur ed.“comet tail sign”and “air-brochogram sign”were seen in 3 cases.Conclusion The round atelectasis is of typical findings o n plain chest films and CT scans which play a very important role in diagnosis a nd differential diagnosis.

关 键 词：圆形肺不张 影像学 诊断 X线计算机 体层摄影 X线摄影 

分 类 号：R563.4[医药卫生—呼吸系统] R445[医药卫生—内科学]