superior gastric node, a node in one of two sets of gastric lymph glands, accompanying the left gastric artery. There are three groups of superior gastric nodes: the upper group of nodes on the stem of the artery, the lower group of nodes accompanying branches of the artery along the cardiac half of the lesser curvature of the stomach, and the paracardial group of nodes around the neck of the stomach. The superior gastric nodes receive their afferent vessels from the stomach and pass their efferent vessels to the celiac group of preaortic nodes. Compare inferior gastric node.