AI Article Synopsis
- The study aimed to identify a specific boundary vein that separates the caudate lobe of the liver from adjacent segments, crucial for understanding liver anatomy during surgeries.
- Researchers dissected 54 adult cadaveric livers to investigate the relationship between the portal veins and hepatic veins in both the caudate lobe and neighboring liver segments.
- Findings revealed the caudate processus hepatic vein, which connects directly to the inferior vena cava, as a potential marker for defining the boundary between the caudate lobe and adjacent segments, paving the way for improved surgical techniques.
Article Abstract
Objective: This study was conducted to find the boundary vein indicating the intersegmental plane between the caudate lobe and the adjacent liver segments.
Summary Background Data: Major hepatic veins of the human liver commonly run through the intersegmental plane and are widely used for the landmarks to define the boundary of both sides of liver segments. As the caudate lobe is a small independent unit of the liver separate from the right and left livers, the existence of the boundary hepatic vein to the adjacent liver segments has been expected.
Methods: Fifty-four adult cadaveric livers were minutely dissected to elucidate the correlation between the portal vein branches and the hepatic veins on both the caudate lobe and the adjacent liver segments.
Results: Among the hepatic veins of the caudate lobe, the caudate processus hepatic vein entering the inferior vena cava at hepatic hilum runs in the segmental plane between the caudate processus and the right liver. Three types of the caudate processus hepatic vein directly entering the inferior vena cava and 1 type of the exceptional hepatic vein that was the tributary of the right hepatic vein were observed. They drained the blood of the caudate processus and a part of the right liver, respectively.
Conclusions: The caudate processus hepatic vein is one of the candidates of the hepatic vein indicating the boundary between the caudate lobe and the adjacent liver segments. New procedures will be developed on the liver surgeries by acquiring the anatomic features of this vein.
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| http://dx.doi.org/10.1097/SLA.0b013e31815efd8d | DOI Listing |
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