11-month-old male infant with polysplenia syndrome operated for common atrioventricular canal.Findings: Thoracic CT scan in injected axial section showing ascending (e) and descending (f) aorta in place with venous return anomaly such as azygos substitution (g) of the inferior vena cava with the superior vena cava which is left (h).Technique: Philips, 23 mL IV ultravist 300, kV 110, mA 93.