Bile Duct Mucinous Adenocarcinoma, also known as extrahepatic bile duct mucinous adenocarcinoma, is related to intrahepatic biliary papillomatosis and bladder signet ring cell adenocarcinoma, and has symptoms including abdominal pain, icterus and nausea. An important gene associated with Bile Duct Mucinous Adenocarcinoma is MUC2 (Mucin 2, Oligomeric Mucus/Gel-Forming), and among its related pathways/superpathways are Diseases of glycosylation and O-linked glycosylation of mucins.