Right gastric artery
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The right gastric artery (RGA) is a non-hepatic branch of the hepatic arteries that supplies the lesser curvature of the stomach.
The right gastric artery usually branches from one of the hepatic arteries (common, proper or left hepatic). It is the most common non-hepatic branch of the proper hepatic artery or its distal branches 4. It runs along the lesser curvature of the stomach between the two layers of the lesser omentum (hepatogastric ligament) and anastomoses end on with the left gastric artery.
The right gastric artery supplies the lesser curvature of the stomach. Its branches come off at right angles, in contrast to branches from vagal nerve trunks, which come off obliquely.
Veins of the same name accompany the arteries.
The right gastric artery has variable origins 1-3:
- proximal branches of hepatic trunk (80%)
- distal branches (20%)
The left and right gastric artery can be double as they run parallel along the lesser curvature of the stomach.
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