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Percutaneous transhepatic cholangiogram

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A radiologic technique used to visualize the anatomy of the biliary tract.

Done under local anaesthesia by a radiologist.

A contrast medium is injected into a bile duct in the liver.

Predominantly performed as a therapeutic technique as there are less invasive means of imaging the biliary tree including transabdominal ultrasound, magnetic resonance cholangiopancreatography, computed tomography and endoscopic ultrasound.

May be used to perform biliary drainage.

Complications encountered include infection, bleeding and bile leaks.

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