My dad has been sick since feb 05,he has all the symptoms of bile duct cancer.the doctors cannot get a biopsy,because of the location of the tumor.it is located in the intrahepatic bile duct.they say there is to many blood vessels in that area and it would be dangerous to go in that far.they have done multiply biopsies in surrounding areas,and they have all came back negative.he has had to have a drain tube put in his side to drain bile out into a bag.the doctors started chemo back in aug,because his pain was getting worse.he has had 12 treatments and each time he gets a ct scan,it shows that it has not grown any.does anyone else know what else could be done.