Resection of hepatoblastoma with right atrial extension using cardiopulmonary bypass.

A 3-year-old boy underwent a successful combined resection of a hepatoblastoma and its intracaval right atrial extension using a cardiopulmonary bypass. This type of extension is extremely rare in hepatoblastoma. The cardiopulmonary bypass enabled complete resection of the intracardiac mass of the hepatoblastoma. In addition, dissection and ligation of the right hepatic vein under cardiopulmonary bypass made the following right hepatectomy easy and safe.