DEFINITION
Endoscopic Retrograde Cholangiopancreatography

A procedure that uses an endoscope to examine and X-ray the pancreatic duct, hepatic duct, common bile duct, duodenal papilla and gallbladder. An endoscope is a thin, tube-like instrument with a light and a lens for viewing. The endoscope is passed through the mouth and down into the first part of the small intestine (duodenum). A smaller tube (catheter) is then inserted through the endoscope into the bile and pancreatic ducts. A dye is injected through the catheter into the ducts, and an X-ray is taken. Also called ERCP.

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