Which segment is the caudate lobe?

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Multiple Choice

Which segment is the caudate lobe?

In the liver’s segmental anatomy, the caudate lobe is designated as segment I in the Couinaud system. It sits on the visceral surface between the fissure for the inferior vena cava and the porta hepatis, tucked behind the main right and left lobes. It has its own distinct vascular inflow and often drains directly into the IVC, which helps define it as its own segment rather than part of the left or right lobe. Therefore, the caudate lobe corresponds to Segment 1.

In the liver’s segmental anatomy, the caudate lobe is designated as segment I in the Couinaud system. It sits on the visceral surface between the fissure for the inferior vena cava and the porta hepatis, tucked behind the main right and left lobes. It has its own distinct vascular inflow and often drains directly into the IVC, which helps define it as its own segment rather than part of the left or right lobe. Therefore, the caudate lobe corresponds to Segment 1.

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