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Click 38-year old male with inflammatory pseudotumor of the liver. IV-contrast enhanced portal venous phase CT scan demonstrates a large mass occupying the entire left lobe and anterior segment of the right lobe of the liver. Most of the cystic/necrotic component is within the anterior and medial segments and the heterogeneous predominantly solid component occupies the lateral segment.

Click 38-year old male with inflammatory pseudotumor of the liver. Axial FSE T2-weighted MR images demonstrate a heterogeneous, complex mass. The cystic/necrotic component within the anterior and medial segments demonstrate central high signal intensity surrounded by a thick irregular low signal intensity rim. The heterogeneous and predominantly solid component of this mass occupies and expands the lateral segment. The solid component is higher in signal intensity compared to normal liver.

Click 38-year old male with inflammatory pseudotumor of the liver. Axial T1-weighted post-gadolinium MR images demonstrate a heterogeneous, complex mass. The cystic/necrotic component within the anterior and medial segments demonstrate central low signal intensity surrounded by a thick irregular rim that lacks enhancement following the administration of dynamic gadolinium. The heterogeneous and predominantly solid component of this mass occupies and expands the lateral segment. The solid component demonstrates gadolinium enhancement.

Click Axial FSE T2-weighted MR images in a 41-year old man with a history of hepatic inflammatory pseudotumor demonstrate a well-defined hyperintense hepatic mass with peripheral biliary ductal dilatation.

Click Coronal T2-weighted MR images in a 41-year old man with a history of hepatic inflammatory pseudotumor demonstrate a well-defined hyperintense hepatic mass with peripheral biliary ductal dilatation.

Click ERCP images in a 41-year old male with a history of hepatic inflammatory pseudotumor demonstrate biliary compression and narrowing with resultant biliary dilatation, which was subsequently relieved following stent placement.