Background: The purpose of the present study was to define the differential diagnostic markers of benign and malignant bile duct strictures without demonstrable mass on ultrasonography (US ...

the duodenal stricture might necessitate balloon dilation (with caution for the risk of perforation) for proper duodenoscope positioning and eventual biliary stent placement followed by duodenal ...

At operation a stricture 3 mm. in diameter was found at ... and acute and chronic inflammation of the biliary-duct system. Sections of the lung revealed widely dilated alveolar capillaries ...

Once clinical suspicion has been established for primary biliary cholangitis (PBC), the "serologic hallmark" of the ...