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Endoscopic biliary drainage using a 5F plastic stent without endoscopic sphincterotomy (EST). Cholangiogram showing (A) no definite stone in a gallstone patient with cholangitis. (B) Intraductal ultrasonography (IDUS) was performed for the detection of common bile duct (CBD) stones. (C) IDUS showing negative finding of CBD stones or sludge. (D) Endoscopic view showing an inserted 5F plastic stent without EST. (E) Cholangiogram showing a 5F plastic stent inserted into the bile duct.
