摘要
Malignant biliary obstruction is a sinister condition that require radical treatment in order to provide the hope of a cure.Apart from complex surgery,the major clinical challenge remains the difficulty in making a conclusive diagnosis(1).There is a long list of differential diagnosis for obstruction of the bile duct including benign condition like primary sclerosing cholangitis,iatrogenic injury,infection and IgG 4 related conditions to malignant condition like carcinoma involving the whole course of bile duct,pancreatic carcinoma and adenocarcinoma in the periampullary regions(2-5).