From the case:
Total anomalous pulmonary venous return (illustration)
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This diagram shows the different types of total anomalous pulmonary venous return.
(Ao - aorta; PA - pulmonary artery; ASD - atrial septal defect; RA - right atrium; LA - left atrium; RV - right ventricle; LV - left ventricle; SVC - superior vena cava; IVC - inferior vena cava)