Fig. 1
A schematic diagram of the structure of the tumor between the root angle of the hepatic middle and right veins and the typical CT images before operation. A Schematic diagram of tumor structure, the tumor (↑) as if embedded between the middle (←) and right (↓) hepatic veins; B abdominal CT showed tumor (→) the adjacent middle (↓) and right (↑) hepatic veins can be pushed and squeezed. Three-dimensional visualization reconstruction of liver before operation and the spatial structure relationship between tumor and middle and right hepatic vein: C positive view of three-dimensional reconstruction of liver: tumor (→), middle hepatic vein (↑), right hepatic vein (↓); D top view of three-dimensional reconstruction of liver: tumor (←), middle hepatic vein (↓), right hepatic vein (↑); E bottom view of three-dimensional reconstruction of liver: tumor (→), middle hepatic vein (↓), right hepatic vein (↑)