Definition

A duct (tube) that is outside the liver and carries bile from the liver and gallbladder to the small intestine. The extrahepatic bile duct is made up of the perihilar region (the area that is closest to the liver and includes the common hepatic duct) and the distal region (the area that is farthest from the liver and includes the common bile duct). The extrahepatic bile duct is part of the biliary system.