On February 17th, 2016, six charities from around the world will join together to launch the inaugural World Cholangiocarcinoma Day. Across the world, cholangiocarcinoma is a silent killer... Cholangiocarcinoma, or bile duct cancer, is a devastating cancer that occurs in the bile ducts in or outside the liver. With few noticeable and often misunderstood symptoms, once diagnosed, fewer than 5% will be alive one year later.