Presentation
Routine chest x-ray suggests vascular anomaly. There is no clinical information.
Patient Data
Right aortic arch suspected.
Right side aortic arch that compresses the esophagus. No signs of tracheal compression.
Infundibular structure in the aortic arch, from where the left subclavian artery arises, known as Kommerell's diverticulum.
Asymmetry between common carotid arteries, the left much thinner than the right one, due to interruption of the left aortic arch.
Case Discussion
A type II right aortic arch, in some references, is more frequent than a type I right aortic arch. The proximal portion of the embryologic left arch forms the left common carotid artery, which arises as the first branch of the aorta. The distal portion of the left arch may persist as an enlargement, the so-called diverticulum of Kommerell.
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