Liver transplantation surgical techniques for extensive retroperitoneal tumor with major blood vessel involvement: a case report.

A case of a 71-year-old man with a huge retroperitoneal tumor situated behind the liver, which strongly compressed the liver inferior vena cava (IVC), and gastrointestinal tract is described. With the techniques of whole liver extraction and autologous orthotopic liver transplantation, we successfully removed the tumor. We have the surgical techniques, essential elements, and indications for this procedure.