Fig. 1

The findings of contrast-enhanced multidetector computed tomography (MDCT) and transcatheter angiogram. a, b Contrast-enhanced MDCT showing an abnormal venous connection between the left portal vein and the inferior vena cava (IVC; white arrows), suggestive of patent ductus venosus. c, d Elective superior mesenteric angiogram with delayed venous phase image and transfemoral venography showing the same findings as those of MDCT