How does the caudate lobe drain venous blood?

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The caudate lobe has a distinctive venous drainage pattern: it empties blood directly into the inferior vena cava via small emissary veins that bypass the main hepatic veins. This direct connection reflects the caudate lobe’s position on the posterior liver surface near the IVC and explains why its venous outflow enters the systemic circulation without first passing through the major hepatic veins. Other liver segments typically drain into the hepatic veins before reaching the IVC, not straight into the IVC, and they do not route their outflow into the portal system or the left renal vein.