Figure 1. Cadaveric image of the liver with Riedel’s lobe and beaver tail variant.

Figure 1A shows Riedel’s lobe (red arrowhead) and beaver tail variant in the abdomen of a 45-year-old female cadaver. The black arrow indicates the spleen, forming an impression on the left lobe of the liver. Figure 1B shows the liver being removed from the abdomen. The red arrowhead indicates Riedel’s lobe. Figure 1C shows the portocaval intrahepatic structures of the liver. The hepatic venous radicals draining the liver into the IVC are depicted in white dotted lines and the portal venous radicals in purple dotted lines. Note that Riedel’s lobe is drained by the MHV and supplied by the RPV. The beaver tail variant is drained by the LHV and supplied by the LPV

IVC: inferior vena cava; MHV: middle hepatic vein; RPV: right branch of the portal vein; LHV: left hepatic vein; LPV: left branch of the portal vein