Clinical utility of computed tomography in diagnosing sinus venosus atrial septal defect

We present a case of 51-year-old patient after surgical closure of atrial septal defect several years ago. Enlarged right ventricle, right atrium and pulmonary hypertension were found on routine transthoracic echocardiography. Transesophageal echocardiography revealed sinus venosus atrial septal defect. Partial anomalous pulmonary venous drainage was suspected. Only the computed tomography with contrast agent let us establish final diagnosis.