Non-obstructed supracardiac total anomalous pulmonary venous connection with giant superior vena cava aneurysm

BACKGROUND: Giant superior vena cava (SVC) aneurysm in non-obstructed supracardiac total anomalous pulmonary venous connection (TAPVC) is even more rare than in obstructed one, and this combination has not been reported. CASE PRESENTATION: Here we reported a 29-year‐old young lady with non-obstructed TAPVC complicated with a giant SVC aneurysm. Routine TAPVC correction and tricuspid valve repair were done. Additionally, venoctomy was carried out to seek for its histological etiology and to avoid potential complications. CONCLUSIONS: If confirmed by further and larger experiences, for patients with non-obstructed supracardiac TAPVC with giant SVC aneurysm, surgical treatment of SVC aneurysm could be more aggressive to prevent cardiovascular complications.