The left gastroepiploic vein, also called the left gastro-omental vein, is at the end of branches from the upper front and lower back surfaces of the stomach, and also from the greater omentum. It goes from the right to the left of the stomach’s greater curvature before ending at the beginning of the primary vein serving the spleen (the splenic, or lienal, vein). The left gastroepiploic vein carries deoxygenated blood away from the spleen and the stomach and moves it to the heart, where it can be resupplied with oxygen.