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Reconfirmation of the right medial division of the portal venous system of liver
Author(s) -
Zheng Nan,
Zhang JianFei,
Gong Jin,
Yu ShengBo,
Xu Qiang,
Wang XiaoMei,
Gao HaiBin,
Tang Wei,
Zhang ChengHong,
Sui HongJin
Publication year - 2012
Publication title -
clinical anatomy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 71
eISSN - 1098-2353
pISSN - 0897-3806
DOI - 10.1002/ca.21275
Subject(s) - medicine , cadaveric spasm , anatomy , division (mathematics) , portal vein , vein , dorsum , oblique case , cell division , anatomical landmark , radiology , surgery , biology , cell , linguistics , philosophy , genetics , mathematics , arithmetic
Abstract With the development of hepatic surgery and radiology, an increasing amount of researchers have reported discrepancies between the real distribution of the hepatic portal vein branches and Couinaud's segmentation, especially for further division of the right medial division. The present study investigated 25 cadaveric liver dissections and 30 three‐dimensional reconstruction images of intrahepatic vessels. The ramifications, course, distribution and quantity of the portal branches were analyzed. An oblique fissure that had few vessels was found among third‐order branches of the hepatic portal vein of the right medial division. The right medial division could be redivided into the ventral subsegment and dorsal subsegment by this oblique fissure. A hepatic vein coursed in the oblique fissure between the ventral subsegment and dorsal subsegment. The hepatic vein could serve as an anatomical landmark of the inter‐subsegmental plane. This new method of identifying further division of the right medial division is a novel concept providing further information on conventional segmental anatomy. Clin. Anat. 25:489–495, 2012. © 2011 Wiley Periodicals, Inc.