Fusion of the midplane with the left intersectional plane: a liver anatomical variation revisited with multidetector-row CT.

European Radiology
Olivier LucidarmePhilippe A Grenier

Abstract

This article updates the description of an anatomical variation of the liver, in which the gallbladder is adjacent to the ligamentum teres, that was described until now as "right-sided ligamentum teres and right umbilical portion of the portal vein". A study of eight patients showing this anatomical variation has led to a new archetypal anatomical description of the hepatic and portal veins, using multidetector-row computed tomography (MDCT) with three-dimensional (3D) volume-rendering (VR) reconstructions. While 2D axial imaging gave the same information, MDCT imaging with VR reconstructions provided a clear 3D visualization of this anatomical variation. Typical features can be described as follows: (1) juxtaposition of the ligamentum teres and the gallbladder; (2) typical portal vein branching with a right posterior branch, a left posterior branch and a main medial branch that terminates in the ligamentum teres; (3) two main hepatic veins and a hypotrophied medial hepatic vein. We think, based on the direct comparison of anatomical findings and knowledge of chronological embryological development, that this abnormality results from the defective development of the central part of the liver and not from the persistence of the ...Continue Reading

References

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Citations

Apr 28, 2009·Abdominal Imaging·Rajesh GuptaMunemasa Ryu
Jun 1, 2008·Seminars in Interventional Radiology·Sabine SchmidtAlban Denys
Feb 26, 2013·American Journal of Surgery·Russell W StrongShinn Yeung
Dec 14, 2011·HPB : the Official Journal of the International Hepato Pancreato Biliary Association·Junichi ShindohNorihiro Kokudo
Feb 14, 2008·ANZ Journal of Surgery·Michael D Kelly, Johnathan D Craik
Mar 16, 2013·Journal of Computer Assisted Tomography·Qi WangShijie Wang

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