ERCP refers to use of an Endoscope - a thin, flexible tube with a tiny video camera and light on the end. Retrograde refers to the direction in which the endoscope is used to inject a liquid enabling X-rays to be taken of the bile duct system (Cholangio) and Pancreas. ERCP can be helpful when there is a blockage of the bile ducts or pancreatic ducts by stones, tumors, scarring or narrowing (stricture) of the ducts. ERCP is also used to assess the causes of pancreatitis (inflammation of the pancreas).

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