Abnormal localization of the
cardiac apex, a common atrioventricular canal, anomalous systemic venous return (eg, bilateral superior vena cava, interruption of the inferior vena cava with azygos continuation), atrial and ventricular malformations and septal defects, absent coronary sinus, malpo sition or transposition of the great arteries, pulmonic stenosis, pulmonary atresia, patent ductus arteriosus, and anomalous pulmonary venous connection have often been described.
The following anomalies were detected in our cohort: rudimentary right coronary artery (10 cases), left anterior descending artery (LAD) terminating before the
cardiac apex (9 cases), intermediary artery (6 cases), and LAD and circumflex arteries appearing to arise from separate ostiums (2 cases).