title: Noninvasive diagnosis of right cervical aortic arch.
abstract: A two-year old asymptomatic boy presented with a systolic right supraclavicular thrill. Two-D echography revealed a pulsating loop of tubular echo-free space at this site. Barium esophagogram showed a large curved retroesophageal impression. A noninvasive diagnosis of right cervical aortic arch with left descending aorta can be made on the basis of this combination of findings.
mesh_terms: D001013:Aorta, Thoracic / Q000002:abnormalities*; D001314:Auscultation; D001466:Barium Sulfate; D002675:Child, Preschool; D004452:Echocardiography; D004947:Esophagus / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D011859:Radiography; D013599:Systole
chemical_list: D001466:Barium Sulfate