11-month-old male infant with polysplenia syndrome operated for common atrioventricular canal.Findings: Sagittal section reconstruction of an injected thoracic CT scan showing agenesis of the inferior vena cava with a suprahepatic vein (c) draining directly into the right atrium (d).Technique: Philips, 23 mL IV ultravist 300, kV 110, mA 93.