Fig. 5

Computed tomography findings after the segment 4 segmentectomy. Although the right (black arrow) and left (white arrow) hepatic veins were recognizable, the middle hepatic vein was not observed. Furthermore, liver parenchyma right and adjacent to the umbilical portion of the portal vein (black arrowhead) was not identified. These findings suggested that segmentectomy 4 including the middle hepatic vein was properly achieved