Neonatal repair of truncus arteriosus with "scimitar-like" mixed total pulmonary venous return.

The association between truncus arteriosus and total anomalous pulmonary venous return is exceedingly rare. Here described is a neonate presenting with a common arterial trunk and a previously unreported "scimitar-like" mixed total pulmonary venous return who underwent a successful one-stage repair. The unprecedented anatomic pattern of the systemic and pulmonary venous connection and the original surgical strategy are discussed.