fig9

Figure 9. Still color compare image from a trans-thoracic echocardiogram in a young child in subcostal short-axis view showing a superior vena caval type sinus venosus defect (long yellow arrow). Flow from the right upper pulmonary vein (RUPV) is seen emptying into the right atrium. There is a prominent Eustachian valve (short yellow arrow) seen anterior to the inferior vena caval entrance (IVC).