Fig. 2

Intraoperative findings. a Three-dimensional image of hepatectomy simulation. The tumor was found in the hepatic segment 5 of the cranial side of the right hepatic vein (arrowhead). We performed a simulation in which P5 + 6 (arrow) was scheduled to be resected. b Captured image after clamping the Glissonean pedicle 5 + 6 (arrow). c Cut surface of the liver during transection of the liver parenchyma. d Cut surface of the liver after hepatectomy. The Glissonean pedicle 5 + 6 (arrow) is collectively resected using the Signia™ stapling system (Covidien Japan, Tokyo)