Alex J F, Girodet B, Van Straaten L, Maréchal C
Rev Fr Mal Respir. 1982;10(4):277-84.
The authors present a case of agenesis of the inferior vena cava, above the kidneys, with deviation of the venous blood into a very dilated azygos vein. This anomaly is shown on a P.A. chest film by an opacity in the right tracheobronchial angle corresponding to the azygos prominence. the existence of an anastomosis between the azygos vein and the right auricle by the supra hepatic veins is demonstrated. The authors review the normal radiology of the azygos vein and the radiological approach necessary for the diagnosis of this malformation. In this study the CT scanner is the investigation of first choice, before cavography which demonstrates the associated venous anomalies. This anomaly is latent and therapeutic intervention is not required, but it is important to recognise it on a chest radiograph.
作者报告了一例肾上方下腔静脉缺如的病例，静脉血经扩张的奇静脉引流。该异常在胸部后前位片上表现为右气管支气管角处的致密影，对应奇静脉隆起。通过肝上静脉证实了奇静脉与右心耳之间存在吻合。作者回顾了奇静脉的正常影像学表现以及诊断该畸形所需的放射学检查方法。在本研究中，CT扫描是首选的检查方法，其次是腔静脉造影，后者可显示相关的静脉异常。这种异常通常是隐匿性的，无需治疗干预，但在胸部X线片上识别它很重要。
