Since I do not know about your bilirubin level and how yellow you are in your eyes(jaundice); I can not provide any assumption to your current disease status. It is clear that the chance you have extrahepatic cholangiocarcinoma is higher than the intrahepatic kind; but they do put"biliary stent"-a small rubber tube about 1.5 inches long and about 1/8-1/16 of an inch in overall diameter inside the liver bile ducts and they can get clogged very easily; the thickness of the bile, the content of the bacteria and the microscopic debris from the cells are factors for the contribution of the obstruction of the biliary stents.Tumor growth clearly will be a factor too.
It is best for you to seek a 2nd GI liver specialist opinion in a university setting hospital;I think Baylor first then MD Anderson, to find out why you still have jaundice. I am not a doctor but a patient.
Please know that my personal opinion is not intended nor implied to be a substitute for professional medical advice. If provided, information are for educational purposes.Consult doctor is a MUST for changing of treatment plans.