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Bile ducts: 2. Intrahepatic bile ducts 3. Left and right hepatic ducts 4. Common hepatic duct 5. Cystic duct 6. Common bile duct 7. Ampulla of Vater 8. Major duodenal papilla 9. Gallbladder 10–11. Right and left lobes of liver 12. Spleen 13. Esophagus 14. Stomach 15. Pancreas: 16.
Occasionally, the cystic duct may first run along the right side of the common bile duct for some distance before joining it, or may pass posteriorly around to the common hepatic duct to unite with it from the left side. [4] Rarely, the common hepatic duct and gallbladder join directly (with the cystic duct being absent), [6] [4] leading to ...
The bile duct [1] [4] (formerly known as the common bile duct [4]) is a part of the biliary tract. [4] It is formed by the union of the common hepatic duct and cystic duct. It ends by uniting with the pancreatic duct to form the hepatopancreatic ampulla. It possesses its sphincter to enable the regulation of bile flow.
The name biliary tract is used to refer to all of the ducts, structures and organs involved in the production, storage and secretion of bile. [10] The tract is as follows: Bile canaliculi >> Canals of Hering >> intrahepatic bile ductule (in portal tracts / triads) >> interlobular bile ducts >> left and right hepatic ducts [4]
They were classified into 5 types by Todani in 1977. [3] Classification was based on site of the cyst or dilatation. Type I to IV has been subtyped. Type I: Most common variety (80-90%) involving saccular or fusiform dilatation of a portion or entire common bile duct (CBD) with normal intrahepatic duct.
Bile duct hamartoma or biliary hamartoma, are benign lesions of the intrahepatic bile duct. [1] They are classically associated with polycystic liver disease , as may be seen in the context of polycystic kidney disease , and represent a malformation of the liver plate.
When the intrahepatic bile duct wall has protrusions, it is clearly seen as central dots or a linear streak. [10] Caroli disease is commonly diagnosed after this “central dot sign” is detected on a CT scan or ultrasound. [10] However, cholangiography is the best, and final, approach to show the enlarged bile ducts as a result of Caroli ...
The stone is impacted in the distal common bile duct. A nasobiliary tube has been inserted. Fluoroscopic image showing dilatation of the pancreatic duct during ERCP investigation. Endoscope is visible. Obstructive jaundice – This may be due to several causes Gallstones with dilated bile ducts on ultrasonography