Simón-Yarza I, Viteri-Ramírez G, Etxano J, Roblero P Slon, Ferreira M, Alemañ G Bastarrika
Servicio de Radiología, Clínica Universidad de Navarra, Pamplona, Spain.
An Sist Sanit Navar. 2011 May-Aug;34(2):295-300. doi: 10.4321/s1137-66272011000200016.
The right aberrant subclavian artery or "arteria lusoria" is the most common anatomical variant of the embryonic development of the aorta and its branches, with a presence in 0.5-2% of the population. Less frequently, a right aortic arch with aberrant left subclavian artery may be present. These anatomical variations should be included in the differential diagnosis of superior mediastinal widening seen on chest radiographs. In this report, we present a right aortic arch with left aberrant subclavian artery dilated at its origin (Kommerell's diverticulum) as a cause of superior mediastinal widening detected incidentally on a chest radiograph.
右迷走锁骨下动脉或“永存动脉弓”是主动脉及其分支胚胎发育中最常见的解剖变异，在人群中的出现率为0.5% - 2%。较少见的情况是，可能存在右位主动脉弓伴左迷走锁骨下动脉。这些解剖变异应纳入胸部X线片上所见上纵隔增宽的鉴别诊断中。在本报告中，我们呈现了一例右位主动脉弓伴起源处扩张的左迷走锁骨下动脉（Kommerell憩室），其作为胸部X线片偶然发现的上纵隔增宽的原因。
