The ligamentum venosum courses along the inferior aspect of the liver in the fossa for ductus venosum, which separates the caudate lobe and the left lobe.
Fetal circulation. The ductus venosus (red), which becomes the ligamentum venosum, connects the umbilical vein to the inferior vena cava.
The ligamentum venosum is the fibrous remnant of the ductus venosus of the fetal circulation. Usually, it is attached to the left branch of the portal vein within the porta hepatis of the liver. It may be continuous with the round ligament of liver (ligamentum teres).
It is invested by the peritoneal folds of the lesser omentum within a fissure on the inferior surface of the liver between the caudate and main parts of the left lobe.
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