The patient has a double aortic arch with mild right-arch dominance in size (right arch 8 mm left arch 6 mm diameter) . There is resulting mass-effect on the trachea where the trachea narrows to 3.5 mm.
There is posterior mass-effect on the esophagus with resulting
dilation of the more proximal esophagus.
The right carotid artery and right subclavian artery come off
separately from the right arch while the left carotid artery and left
subclavian artery separately come off the left arch.
The descending aorta travels just to the right of midline and then
midline more inferiorly.
Original Source: Peter Vangeertruyden Submitted by: Peter Vangeertruyden - Affiliation: National Capital Consortium
Approved By: Matthew Monson - Affiliation: Walter Reed Army Medical Center
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