A hilar mass measuring 15 x 25 mm (transverse) is identified, resulting in marked intrahepatic duct dilatation. The stricture extends over a length of approximately 15 mm.
Gradual enhancement of the lesion is demonstrated on the dynamic series with diffusion restriction present. Beaking of the proximal left intra-hepatic duct with separation of the right anterior and posterior sectoral ducts.
No liver metastases. The common bile duct is normal. No periportal or retroperitoneal lymphadenopathy. Portal vein and right and left branches are patent. Hepatic veins are patent.