Superior mesenteric vein

Superior mesenteric vein is part of the venous drainage system of the upper gastrointestinal tract draining the jejunum and ileum.

Anatomy[edit | edit source]

The superior mesenteric vein lies behind(posterior) the neck of the pancreas and in front of (anterior) uncinate process of pancreas.

The superior mesenteric vein combines with the splenic vein to form the hepatic portal vein.

Anatomical variations of the superior mesenteric vein include:

Absence of common draining trunk, leading to direct drainage in to the splenic vein
Variations in the portal vein are also possible

Common problems with mesenteric vein include mesenteric vein thrombosis, a blood clot, that leads to mesenteric ischemia and can be fatal.

Superior mesenteric vein Resources
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