Lesser omentum

Lesser omentum is a double layer of peritoneum that extends from the liver to the lesser curvature of the stomach and the beginning of the duodenum. It is also referred to as the gastrohepatic ligament, or hepatogastric ligament. It is one of the two extensions of the peritoneum, the other being the greater omentum.

Structure

The lesser omentum is divided into two parts: the hepatogastric ligament and the hepatoduodenal ligament. The hepatogastric ligament extends from the liver to the lesser curvature of the stomach, while the hepatoduodenal ligament extends from the liver to the first part of the duodenum.

Function

The lesser omentum allows for the passage of structures such as the portal vein, hepatic artery, and bile duct. It also helps to stabilize the position of the stomach.

Clinical significance

The lesser omentum can be involved in a variety of medical conditions. For example, it can become inflamed in conditions such as peritonitis. It can also be involved in the spread of cancer, particularly stomach cancer.

See also

• Greater omentum
• Peritoneum
• Stomach
• Liver

References

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