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Figure 3. Seventy-nine-year-old male patient presenting with cholestasis. Coronal single shot fast spin echo T2 images (A) and magnetic resonance cholangiopancreatography (B) show an infiltrating mass in the common bile duct (CBD), proximal to cystic duct insertion, leading to imaging diagnosis of perihilar cholangiocarcinoma. The patient was deemed resectable and successfully underwent right hepatectomy with CBD resection.