by Memorial Sloan Kettering Cancer Center Memorial Sloan Kettering gastrointestinal oncologist Dr. James Harding. Credit: Memorial Sloan Kettering Cancer Center Bile duct cancers are uncommon and aggressive types of gastrointestinal cancer. They include cholangiocarcinomas, which can form inside or outside of the liver, as well as cancers of the gallbladder, and are highly likely to cause...