We present here two patients that had an aberrant right subclavian artery and an anomalous origin of the right vertebral artery from the right common carotid artery. We review the previous literature and discuss herein the embryologic mechanism and clinical implications of this variation.
Adult ; Aged ; Carotid Artery, Common/*abnormalities/radiography ; Female ; Humans ; Male ; Subclavian Artery/*abnormalities/radiography ; Tomography, X-Ray Computed ; Vertebral Artery/*abnormalities/radiography

Esophageal Neoplasms ; pathology ; surgery ; Humans ; Male ; Middle Aged ; Radiography ; Subclavian Artery ; abnormalities ; diagnostic imaging ; surgery

Congenital anomalies of the aortic arch have clinical importance, as the anomalies may be associated with vascular rings or other congenital cardiovascular diseases. Multidetector computed tomography (MDCT) angiography enables one to display the detailed anatomy of vascular structures and the spatial relationships with adjacent organs; this ability is the greatest advantage of the use of MDCT angiography in comparison to other imaging modalities in the evaluation of the congenital anomalies of the aortic arch. In this review article, we illustrate 16-slice MDCT angiography appearances of congenital anomalies of the aortic arch.
Aorta, Thoracic/*abnormalities/embryology/*radiography ; Contrast Media ; Humans ; Radiation Dosage ; Subclavian Artery/abnormalities/radiography ; Tomography, X-Ray Computed/*methods ; Triiodobenzoic Acids

Double aortic arch with an atretic left arch distal to the origin of left subclavian artery was diagnosed with multi-detector row computed tomography (MDCT) in two children with dysphagia. This rare type of complete vascular ring is clinically important because it may be confused with right aortic arch in mirror imaging. Anatomic details of this rare type of complete vascular ring demonstrated on MDCT facilitated appropriate surgical treatment.
Adolescent ; Aorta, Thoracic/*abnormalities/radiography/surgery ; Child, Preschool ; Deglutition Disorders/etiology/radiography/surgery ; Female ; Humans ; Multidetector Computed Tomography/*methods ; Subclavian Artery/*abnormalities/radiography/surgery ; Vascular Malformations/complications/*radiography/surgery ; Vascular Surgical Procedures