Clinical Endoscopy  2012;45(3):331-336

Usefulness of Intraductal Ultrasonography in the Diagnosis of Cholangiocarcinoma and IgG4-Related Sclerosing Cholangitis.

Takahiro NAKAZAWA 1 ; Itaru NAITOH ; Kazuki HAYASHI

Affiliations

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Keywords

Intraductal ultrasonography; Cholangiocarcinoma; IgG4-related sclerosing cholangitis

Country

Republic of Korea

Language

English

Abstract

The technique of intraductal ultrasonography (IDUS) of the bile duct with a thin-caliber probe and a ropeway system has provided excellent images of the bile duct and periductal structures and is an easy transpapillary approach. In addition, once the guide wire is inserted into the bile duct, IDUS and transpapillary biopsy after endoscopic retrograde cholangiopancreatography can be performed in a single session. Here, we review the usefulness of IDUS in the diagnosis of cholangiocarcinoma and IgG4-related sclerosing cholangitis.