异常体动脉供血正常左肺下叶的CT表现与解剖基础  

CT features and anatomic basis of anomalous arterial supply to the normal basal segments of left lower lobe

作　　者：石健强[1] 骆众星[1] 郭宁[1] 覃杰[1] 

机构地区：[1]中山大学附属第三医院放射科,广东广州510630

出　　处：《解剖学研究》2014年第6期407-409,480,共4页Anatomy Research

基　　金：国家自然科学青年科学基金(81101096);广东省医学科研基金(B2011102)

摘　　要：目的探讨异常体动脉供血正常左肺下叶的CT表现及其解剖学基础。方法回顾性分析6例异常体动脉供血正常左肺下叶的CT表现及解剖。结果增强CT及术后大体标本均显示6例(100%)粗大异常动脉起源于降主动脉左侧,异常动脉直径约为12 mm,6例(100%)左下肺动脉在背段动脉起始远侧缺如。6例(100%)CT表现左肺下叶基底段呈毛玻璃影伴体积缩小,其大体标本切面见多个扩张血管,镜下肺组织部分区域见大小不等厚壁血管,肺泡腔内有多量含铁血黄素,间质内见血管扩张、充血及灶性出血。结论异常体动脉供血正常左肺下叶的CT表现可反映其解剖基础,CT增强扫描可确诊该病。Objective To evaluate CT features and anatomic basis of anomalous arterial supply to the normal basal segments of left lower lobe. Methods The CT features and anatomic basis of 6 patients with anomalous arterial supply to the normal basal segments of left lower lobe were retrospectively analyzed. Results Retrocardiac vessel-like shadows connecting to the descending aorta were found in 6 cases. The volume of the left lower lobes with ground-glass opacities was reduced in 6 cases. The interlobar arteries distal to the origin of the superior segmental artery were absent in 6 cases. The aberrant artery was approximately 12 mm in diameter. The aberrant artery from the left side of the descending aorta was found in 6 cases. The dilation of blood vessels was shown in the gross specimen section of 6 cases. The various thick-walled vessels, hemosiderin in alveolar space, interstitial congestion, and focal hemorrhage were demonstrated in 6 cases. Conclusion Anomalous arterial supply to the normal basal segments of left lower lobe could be diagnosed by enhancing CT scan which could reflect anatomic basis.

关 键 词：血管畸形 肺 计算机体 体层摄影术 

分 类 号：R816.2[医药卫生—放射医学]