Christensen E E, Landay M J, Dietz G W, Brinley G
AJR Am J Roentgenol. 1978 Jul;131(1):119-23. doi: 10.2214/ajr.131.1.119.
A tortuous retroflexed innominate artery can simulate a right apical mass. Four cases are presented to illustrate the four fairly distinct appearances which can result. When the innominate artery buckles posteriorly and laterally, it occasionally impresses deeply into the lung and becomes almost completely surrounded by air. The artery will then look like a pulmonary mass on frontal radiographs. The lower margin of the mass is always more crisply defined than the upper margin, and the appearance on the lateral film is fairly characteristic. Aortography is recommended when the radiographic picture is equivocal. In a survey of 200 randomly selected patients over 50 years old, only one had an innominate artery that presented as an apparent pulmonary mass.
迂曲后屈的无名动脉可模拟右肺尖肿块。本文介绍4例以说明可能产生的4种相当不同的表现。当无名动脉向后外侧弯曲时，它偶尔会深深压入肺内并几乎完全被气体包围。此时，在正位胸片上该动脉看起来就像一个肺部肿块。肿块的下缘总是比上缘更清晰，侧位片上的表现相当有特征性。当影像学表现不明确时，建议进行主动脉造影。在对200例随机选取的50岁以上患者的调查中，只有1例患者的无名动脉表现为明显的肺部肿块。
