Segmentectomy of the liver

Hiroshi Yoshida, Yu Katayose, Toshiki Rikiyama, Fuyuhiko Motoi, Toru Onogawa, Shinichi Egawa, Michiaki Unno

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


Segmentectomy is anatomical resection of segments based on the classification of Couinaud. This procedure is performed mainly for hepatocellular carcinoma. Invasion of portal vein and intrahepatic metastases often occur with hepatocellular carcinoma. Thus, it is desirable to perform anatomical resection of the cancerbearing areas for curative purpose. However, segmentectomy is selected when extensive resection must be avoided to preserve liver function. There are major differences between segmentectomy of the left hemiliver (Sg 2-4) and right hemiliver (Sg 5-8). In the former, the branches (thirdorder branches) arising from the umbilical portion of the portal vein can be ligated prior to liver resection. In the latter, manipulation is difficult. Therefore, ultrasonically guided segmental staining is performed by puncturing the portal branch and injecting a dye. This report described techniques for segmentectomy.

Original languageEnglish
Pages (from-to)67-71
Number of pages5
JournalJournal of Hepato-Biliary-Pancreatic Sciences
Issue number1
Publication statusPublished - 2012 Jan


  • Hepatectomy
  • Hepatocellular carcinoma
  • Liver
  • Segmentectomy


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