Malignant strictures of the bile duct due to cholangiocarcinoma are often difficult to diagnose and treat. These lesions generally present at an advanced stage due to a paucity of symptoms early in the disease.
1 Conventional imaging modalities such as transabdominal ultrasonography, computed tomography (CT), magnetic resonance cholangiopancreatography (MRCP), and positron emission tomography (PET) are often helpful investigations to provide information on the presence and extent of cholangiocarcinoma; however, the definitive diagnosis is generally dependent on obtaining tissue confirming…