Liver's Blood Vessels, Posterior View

Description

Oriented from the posterior aspect, the semi-transparent hepatic parenchyma reveals the portal venous tree and hepatic arterial branches coursing centrally before arborizing toward the peripheral segments. Blue-caliber vessels radiate within the right and left lobes, their trajectories conforming to lobar and segmental anatomy, while a dominant vertical conduit lies posteriorly and slightly to the right of midline, consistent with the inferior vena cava. Short hepatic veins converge on this caval channel near the superior posterior surface, where venous outflow leaves the liver. Posterior vascular anatomy matters because this is the operative and interventional “back side” of the organ, where outflow control and caval relationships dictate risk. During hepatectomy, liver transplantation, or mobilization of the right lobe, the surgeon works adjacent to the retrohepatic inferior vena cava and must identify and manage the right, middle, and left hepatic veins, along with smaller accessory hepatic veins that can bleed briskly if avulsed. For portal hypertension, the contrast between portal inflow and hepatic venous drainage frames the hemodynamics behind variceal disease and guides procedures such as transjugular intrahepatic portosystemic shunt placement, where the hepatic vein to portal vein tract is created under imaging. Use this illustration in gross anatomy and hepatobiliary modules to teach dual blood supply and segmental perfusion, or in surgical atlases and review articles discussing caval dissection, hepatic venous anatomy, and portal venous branching patterns. It also supports radiology and interventional education when correlating posterior liver vascular landmarks with CT or MR angiography and venography. Anatomical accuracy verified by SciePro's Medical Advisory Board.