ERCP or endoscopic retrograde cholangio-pancreatography is the name given to the imaging of the biliary tract and pancreatic duct by endoscopy device with a special drug that allows the viewing of the biliary tract on X-ray and, if necessary, to perform some treatments such as removing the stone that leads to obstructing jaundice in the canal, opening the narrowness of the gall canal mouth.
Bile is a special liquid secreted in the liver that helps to digest fats. It is stored between meals and then secreted for digestion. The bile duct enters the intestine of twelve fingers through a protrusion called a papilla. This is called the bile duct is entered through the bulge called papillae.