Figure 2

Schematic illustration of intraoperative finding and pathological examination. (A) 12c indicates the enlarged lymph node in the area of the cystic duct, which is suspected to invade the RHA and common hepatic duct. Double dotted lines indicate where the RHA is divided. Double lines indicate where the bile ducts are divided. The thick line indicated by arrowheads indicates the preserved hepatic plate, which includes the interlobar hepatic artery running through the Glissonian sheath around the confluence of the hepatic ducts. (B) Gross appearance of resected specimens: *, liver parenchyma; †, gallbladder; ‡, transverse colon; §, common hepatic duct. (C) Microscopic image of RHA and adjacent tissue (x200). Solid line indicates adventitia of the RHA. Dotted line indicates extracapsular invasion front of gallbladder cancer. A, artery; T, tumor.