A case of right renal cell carcinoma with an inferior vena cava tumor thrombus extending above the diaphragm resected without cardiopulmonary bypass.

We preoperatively evaluated the tumor thrombus of right renal cell carcinoma cT3cN0M0 extending close to the right atrium using abdominal ultrasound. We found that invasion of the inferior vena cava (IVC) by the tumor thrombus was limited to the caudal side of the hepatic vein. We clamped the caudal IVC, left renal, and hepatic veins but not the cranial IVC.