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Anomalous systemic arterial supply to normal basal segments of the left lower lobe of the lung: characteristic findings on chest radiography and spiral CT
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF RADIOLOGY
- Issue:
- 8
- DOI:
- 10.3760/j.issn:1005-1201.2006.08.008
- Key Word:
- 心血管畸形;肺;放射摄影术,胸;体层摄影术,X线计算机
Abstract： 目的 总结异常体动脉供应正常左下肺基底段在胸部X线片和螺旋CT上的特征性表现.方法 回顾分析5例异常体动脉供应正常左下肺基底段的胸部X线片和螺旋CT资料.结果 5例异常体动脉供应正常左下肺基底段在胸部X线片上均表现为心后区肿块,左下肺动脉纹理细小,受累左下肺区域无正常肺动脉分支影分布,但有异常增粗纹理.CT上5例均表现为受累肺组织体积轻度缩小,支气管通畅,2例肺实质呈磨玻璃状改变.5例均可见左下肺动脉在背段动脉起始远侧缺如,增粗扭曲的异常体动脉起自降主动脉,其扩张的分支分布于受累肺段.1例血管造影表现与CT相仿.结论 该病在胸部X线片上的表现有一定特征性.增强螺旋CT扫描可明确诊断,以避免创伤性的血管造影和致命的穿刺活检.
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