1.   Sclerosing cholangitis and biliary tract calculi - primary or secondary?

2.   Sclerosing cholangitis and biliary tract calculi -- primary or secondary?

3.   By conventional criteria, it is excluded by the presence of biliary tract calculi, a history of previous biliary tract surgery, and the presence of a cholangiocarcinoma.

4.   Despite these criteria, patients with biliary tract calculi have been included in several studies of primary sclerosing cholangitis.

5.   We have also encountered a number of patients with the radiological features of sclerosing cholangitis but in whom there were also biliary tract calculi.

6.   The findings of this study show that a number of patients with sclerosing cholangitis also have biliary tract calculi.

7.   Patients with primary sclerosing cholangitis complicated by biliary tract calculi were more likely to be symptomatic at presentation than those without calculi.