Cholangioscopy

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A cholangioscopy is a direct endoscopy of the biliary tract . This can be done intraoperatively or through a skin incision using a thin endoscope through the working channel of a thicker ERCP device (mother-baby technology) . In the latter, a bile duct within the liver is first sought out with a special syringe, then a guide wire is inserted and the cholangioscope is inserted over it.

With a cholangioscopy, bile duct stones can be destroyed and tissue samples can be taken from bile duct tumors ( biopsy ).

Competing procedures, which do not allow manipulation but only a pictorial representation, are x-ray procedures such as percutaneous transhepatic cholangiography , which is carried out from the outside through the skin.