A useful sign in the recognition of azygos continuation of the inferior vena cava.
D000015:Abnormalities, Multiple / Q000000981:diagnostic imaging; D001011:Aorta / Q000002:abnormalities; D001401:Azygos Vein / Q000000981:diagnostic imaging*; D006328:Cardiac Catheterization; D002648:Child; D003914:Dextrocardia / Q000150:complications / Q000000981:diagnostic imaging; D006330:Heart Defects, Congenital / Q000150:complications / Q000000981:diagnostic imaging; D006343:Heart Septal Defects / Q000150:complications / Q000000981:diagnostic imaging; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D011651:Pulmonary Artery / Q000002:abnormalities; D011859:Radiography; D014188:Transposition of Great Vessels / Q000150:complications / Q000000981:diagnostic imaging; D014682:Vena Cava, Inferior / Q000002:abnormalities* / Q000000981:diagnostic imaging