Azygos continuation of the inferior vena cava.
D000328:Adult; D001401:Azygos Vein / Q000002:abnormalities* / Q000000981:diagnostic imaging; D005260:Female; D006330:Heart Defects, Congenital; D006801:Humans; D007421:Intestine, Small / Q000002:abnormalities; D010690:Phlebography; D012857:Situs Inversus / Q000150:complications; D013270:Stomach / Q000002:abnormalities; D014682:Vena Cava, Inferior / Q000002:abnormalities* / Q000000981:diagnostic imaging