Well-defined mass occupying the lesser sac (gastrohepatic ligament), inseparable from the lesser curvature of the stomach, showing no extension into the gastric lumen or mucosa. After contrast administration, the mass enhances heterogeneously. It abuts the free border of the left hepatic lobe and compresses segment II superiorly with no evidence of direct infiltration. The left gastric artery is stretched along the posterior surface of the mass with no signs of occlusion.