Papillary process of the caudate lobe
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Chronic abdominal pain.
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There is a tongue-like liver tissue projection arising from the caudate lobe extending medially.
A circumaortic left renal vein is also seen.
The papillary process is the medial projection of the caudate lobe and can mimic a lymph node or even a pancreatic mass, especially when prominent as in this case. However, differentiation between these conditions is not a diagnostic challenge in most cases with multiplanar imaging.