Radiologic notes in cardiology: obscuration of the aortic knob in coarctation of the aorta.
D000328:Adult; D001017:Aortic Coarctation / Q000000981:diagnostic imaging*; D002648:Child; D003937:Diagnosis, Differential; D004947:Esophagus / Q000000981:diagnostic imaging; D006801:Humans; D007223:Infant; D008482:Mediastinum / Q000000981:diagnostic imaging; D011859:Radiography; D014683:Vena Cava, Superior / Q000000981:diagnostic imaging