Methods: Between February 1995 and February 2001, 24 patients who underwent surgical resection for dilations of the bile duct (peripheral and hilar) without visible mass lesion on US or CT were ...

A man in his early 50s complained of cough, low-grade fever and dyspnoea. Chest radiograph was suggestive of a right hilar mass. Contrast-enhanced CT of the thorax revealed right perihilar ...