Hepatocellular carcinoma with a tumour thrombus extending to the tricuspid valve: report of a successful en bloc resection.

This paper reports the use of cardiopulmonary bypass with mild hypothermia for the successful en bloc resection of a hepatocellular carcinoma in a cirrhotic liver with a tumor thrombus extending into inferior vena cava (IVC) and to the right atrium (RA), often prolapsing the tricuspid valve. The patient was a 77-year-old woman with antibodies against hepatitis C virus (HCV) and a serum alpha-fetoprotein (AFP) concentration of 13,566ng/mL. Imaging showed a large tumor in the left lobe of the liver extending into the RA, which often was prolapsed the tricuspid valve to produce mitral valve regurgitation. To prevent intraoperative pulmonary thromboembolism, both cardiac arrest and hepatic vascular occlusion with mild hypothermia were applied. The RA and IVC tumor thrombus and left liver were resected in en bloc. The cardiac arrest and hepatic vascular exclusion times were 56 and 15 min, respectively. The operation took 11 h, and the total blood loss was 1,078mL. The resected specimen weighed 1,000g and the tumor measured 8.0 x 7.8cm.