Hepatobiliary Lymphatics, Posterior View

Description

Posterior anatomy frames the hepatobiliary lymphatics as they course along the porta hepatis and posterior liver surface, with collecting vessels tracking the bile duct, hepatic artery proper, and portal vein within the hepatoduodenal ligament. Tributaries converge toward cystic and hepatic lymph nodes, then continue to peripancreatic and celiac nodes situated inferior and medial to the liver at the level of the proximal foregut. More superiorly, efferents align with the diaphragmatic crura to join the thoracic duct, which ascends in the posterior mediastinum. The spleen appears in the left upper quadrant, lateral to the stomach and superior to the left colic flexure, with splenic hilar lymphatics directed medially toward the pancreatic tail. Posterior orientation matters because hepatobiliary lymphatic drainage underpins the spread patterns of cholangiocarcinoma and gallbladder carcinoma, where nodal disease often declares first along the cystic duct, hepatic hilum, and celiac axis before extending toward paraaortic chains. Surgeons planning lymphadenectomy around the hepatoduodenal ligament must respect the intimate relationship between lymphatic channels and the portal triad, and interventionalists interpreting postoperative lymphocele or chyle leak benefit from a map that links hepatic and splenic pathways to the thoracic duct. A key teaching point. Retrograde congestion can also help explain splenomegaly in portal hypertension, even when the primary clinical focus sits at the liver hilum. Use this plate for hepatobiliary anatomy teaching in gross anatomy, GI surgery, and radiology courses, and for atlas figures supporting discussions of hilar node stations, oncologic staging, or thoracic duct injury risk during upper abdominal dissection. It also fits CME materials on biliary malignancy spread and postoperative lymphatic complications. Anatomical accuracy verified by SciePro's Medical Advisory Board.