Cholangiocarcinoma and malignant biliary obstruction

Abstract

Radiological imaging plays a crucial role in the diagnosis and staging of cholangiocarcinoma and malignant biliary obstruction. Ultrasound is often used as the initial imaging test for suspected biliary obstruction. CT is most commonly used for the diagnosis and staging of the disease as well as follow-up. MR imaging is often helpful as an adjuvant imaging modality as it can provide superior tissue characterization and high-quality noninvasive cholangiography. A multimodality approach is helpful for challenging cases.