Arteria Lusoria: Computed tomography aspects: Two cases report in Niger

Abstract

The term arteria lusoria designates an arterial anatomical variation concerning the supra-aortic trunks and which particularly concerns the right subclavian artery. It is a right subclavian artery which arises directly from the aorta downstream of the left subclavian artery and which crosses the midline to join the right supraclavicular region. It is the most common anomaly of the supra-aortic trunks. The authors report their experience with two cases of this anatomical variant. One of the cases was discovered incidentally, the second case was discovered following the exploration of symptoms described by the patient. Both cases were explored by CT scanning with injection of iodinated contrast product, which made it possible to describe the origin of the artery, its route, its caliber, among other things.