Posterior Perspective of the Splenic Artery

Description

Arising from the celiac trunk, the splenic (lienal) artery runs leftward in a characteristically tortuous, serpentine course along the superior border of the pancreas, posterior to the stomach and toward the splenic hilum. From this posterior perspective, its relationship to the abdominal aorta is clear, with the artery tracking laterally while remaining superior to the small-bowel mesentery and transverse colon region. Proximal segments sit medial to the splenic parenchyma, then divide into terminal branches as they approach the spleen. Short gastric arteries and the left gastro-omental (gastroepiploic) artery are implied along the greater curvature territory, even when partially obscured by overlying viscera. Posterior views like this are the ones surgeons and interventionalists mentally reconstruct when working around the pancreas. The splenic artery’s intimate course along the pancreatic body and tail explains why pancreatitis, pancreatic pseudocyst, and distal pancreatic tumors can erode or compress it, producing splenic artery pseudoaneurysm and potentially massive upper gastrointestinal bleeding. It also frames key operative landmarks in distal pancreatectomy and splenectomy, where control of the vessel near the superior pancreatic margin can reduce blood loss. A high-risk vessel. Use this artwork for teaching celiac trunk branching and upper abdominal vascular supply in gross anatomy, GI surgery, or interventional radiology curricula, and for publication figures discussing splenic infarction, aneurysm management, or complications of pancreatitis involving the lienal vessel. Anatomical accuracy verified by SciePro's Medical Advisory Board.