Pancreaticoduodenal veins

Pancreaticoduodenal Veins

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Diagram of the pancreaticoduodenal veins and surrounding structures.

The pancreaticoduodenal veins are a group of veins that drain blood from the pancreas and the duodenum. These veins are part of the portal venous system, which carries blood from the gastrointestinal tract and spleen to the liver.

Anatomy

The pancreaticoduodenal veins are divided into two main groups:

• The superior pancreaticoduodenal veins
• The inferior pancreaticoduodenal veins

Superior Pancreaticoduodenal Veins

The superior pancreaticoduodenal veins accompany the superior pancreaticoduodenal artery, which is a branch of the gastroduodenal artery. These veins drain the head of the pancreas and the duodenum and empty into the portal vein.

Inferior Pancreaticoduodenal Veins

The inferior pancreaticoduodenal veins accompany the inferior pancreaticoduodenal artery, which is a branch of the superior mesenteric artery. These veins drain the lower part of the head of the pancreas and the duodenum and empty into the superior mesenteric vein.

Function

The primary function of the pancreaticoduodenal veins is to drain deoxygenated blood from the pancreas and duodenum. This blood is rich in nutrients absorbed from the digestive tract and is transported to the liver for processing.

Clinical Significance

The pancreaticoduodenal veins are important in the context of portal hypertension, where increased pressure in the portal venous system can lead to the development of varices and other complications. Additionally, these veins may be involved in the spread of pancreatic cancer or other malignancies.

Related Pages

• Portal vein
• Superior mesenteric vein
• Pancreas
• Duodenum
• Portal hypertension