Endoscopic retrograde cholangiopancreatography (ERCP) is a specialised technique used to study the ducts or 'drainage tubes' of the gallbladder, pancreas and liver.

ERCPEndoscopic retrograde cholangiopancreatography (ERCP) is a technique that combines the use of endoscopy and fluoroscopy to diagnose and treat certain problems of the digestive system such as gallstones, inflammatory strictures (scars) or cancer.

The patient is sedated or anaesthetised. During the procedure a thin telescope (endoscope) is inserted down the throat to allow the doctor to see inside the digestive system.

The doctor then injects a dye into the bile duct or pancreatic duct so it can be seen on an x-ray (fluroscopy) while the necessary procedure is performed.

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