The overall findings of intra & extrahepatic biliary radicle dilatation and strictures, with intra-ductal calculi, in absence of GB calculi, is highly suggestive of recurrent pyogenic cholangiohepatitis (oriental cholangiohepatitis), particularly for a patient from Southeast Asia. A definitive diagnosis would require ERCP (which wasn’t done in this case as the patient didn't attend again following this study and to the best of our knowledge, wasn't done prior to this attendance).

The differential diagnosis includes strictures following previous cholangitis/pancreatitis (especially in the presence of annular pancreas), primary sclerosing cholangitis & cholangiocarcinoma.