Omental Foramen - Borders

Borders

It has the following borders:

• anterior: the free border of the lesser omentum, known as the hepatoduodenal ligament. This has two layers and within these layers are the common bile duct, hepatic artery, and hepatic portal vein. A useful mnemonic to remember these is DAVE: Duct, Artery, Vein, Epiploic foramen.
• posterior: the peritoneum covering the inferior vena cava
• superior: the peritoneum covering the caudate lobe of the liver
• inferior: the peritoneum covering the commencement of the duodenum and the hepatic artery, the latter passing forward below the foramen before ascending between the two layers of the lesser omentum.
• left lateral: gastrosplenic ligament and splenorenal ligament