%0 Journal Article %T Metastatic Pancreatic Adenocarcinoma Presenting as a Klatskin Tumor %A Assad Munis %A Hina Omar %A Mani Mahdavian %A Suzanne Iwaz %J Archive of "ACG Case Reports Journal". %D 2018 %R 10.14309/crj.2018.80 %X Cholangiocarcinoma is a rare clinical entity representing approximately 2% of all cancers diagnosed. More than 65% of these tumors can present at the bifurcation of the hepatic duct and are known as Klatskin tumors. Pancreatic cancer is among the top 5 leading causes of cancer death, and it usually presents at an advanced stage with metastasis commonly seen in the liver. We report a patient with established pancreatic adenocarcinoma who presented with an obstructing mass at the hepatic duct bifurcation without any prior history of biliary tract disease. This represents a new diagnosis of either intracholedochal metastatic tumor or a new diagnosis of cholangiocarcinoma found at the hepatic duct bifurcation without liver involvement in the setting of pancreatic cancer, suggesting metachronous cholangiocarcinoma with pancreatic adenocarcinoma %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6277134/