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Kato et al. Hepatoma Res 2021;7:10 I http://dx.doi.org/10.20517/2394-5079.2020.129 Page 7 of 15

Figure 2. Hilar dissection in robotic anatomic segmentectomy VIII using the extrahepatic Glissonian pedicle approach (GPA). (A)
Passing articulated forceps from the Gate IV to V to encircle the Glissonian pedicle of the right anterior section (G-ant). G-post denotes
the Glissonian pedicle of the right posterior section; (B) the G-ant encircled extrahepatically. The shining Laennec’s capsule of the
segment IV parenchyma is shown; (C) the Glissonian pedicles of the segments V (G-V) and VIII (G-VIII) are taped extrahepatically; (D)
the G-VIII is clamped using a bulldog clamp

Figure 3. Discoloration of the segment VIII (S-VIII) after a specific clamping of G-VIII. (A) Normal endoscopic view. Note the ischemic
S-VIII as the discolored area (arrows); (B) firefly mode using the intravenous injection of indocyanine green (ICG). S-VIII is recognized
as the negative-stained area