Journal of Morphological Sciences
http://www.jms.periodikos.com.br/article/587cb44d7f8c9d0d058b45c9
Journal of Morphological Sciences
Original Article

ANATOMY OF THE INTRAHEPATIC RAMIFICATION OF THE INTERMEDIATE AND LEFT HEPATIC VEINS IN HUMANS

José Roberto Ortale; Carolina Bonet; Patrícia Fernanda Frediani Prado; Andrea Mariotto

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Abstract

The intermediate and left hepatic veins and their tributaries were studied by anatomical dissection of 40 adult human cadaver livers which had been fixed in formalin solution. The intermediate and left hepatic veins and their tributaries showed four types of terminations. In types A, B, and C, the intermediate and left hepatic veins showed a common trunk in 31/40 or 77.5% of cases, that flowed into the inferior vena cava. Whereas in type A terminations (14/31 cases) the common trunk had no direct tributaries, in type B terminations (12/31 cases) the trunk received a tributary, and in type C terminations (5/31 cases), the common trunk and the left superior vein opened separately into the inferior vena cava. The diameter of the common trunk was 17.5 ± 4.3 mm and its length, 7.1 ± 2.8 mm. In type D   terminations (9/ 40 or 22.5% of cases), the intermediate and left hepatic veins ended separately in the inferior vena cava. The diameter of the intermediate and left hepatic veins in 40 cases was 10.0 ± 2.5 mm and 10.7 ± 2.4 mm, respectively. The frequency and diameter of their tributaries were: right posterior medial vein - present in 25/40 or 62.5% of cases with a diameter of 5.5 ± 1.5 mm, left posterior medial vein - present in 22/40 or 55% of cases with a diameter of 4.6 ± 1.9 mm, left medial vein - present in 33/40 or 82.5% of cases with a diameter of 5.2 ± 1.6 mm, and left superior vein - present in 21/40 or 52.5% of cases with a diameter of 4.9 ± 2.1 mm.

Keywords

Hepatic lobe, left liver, morphology, segmental division
587cb44d7f8c9d0d058b45c9 jms Articles
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J. Morphol. Sci.

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