The mesocaval C shunt.Surg Gynecol Obstet. 1980 Mar; 150(3):401-3.SG
A modification of the mesocaval interposition H shunt utilizes the anterior cephalad portion of the superior mesenteric vein on top of the uncinate process of the pancreas as the site of anastomosis. This site is above the branches of the superior mesenteric vein and ensures a vein of large caliber. When the graft is anastomosed to this portion of the vein, it assumes a C configuration.