Search results
Results from the WOW.Com Content Network
Intrahepatic bile ducts compose the outflow system of exocrine bile product from the liver. They can be divided into: [2] Lobar ducts (right and left hepatic ducts) - stratified columnar epithelium. Interlobar ducts (between the main hepatic ducts and the interlobular ducts) - pseudostratified columnar epithelium.
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.
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 ...
Type IVb: Multiple dilatations involving only the extrahepatic bile ducts. Type V: Cystic dilatation of intrahepatic biliary ducts without extrahepatic duct disease. The presence of multiple saccular or cystic dilations of the intrahepatic ducts is known as Caroli's disease. [4] Type VI: An isolated cyst of the cystic duct is an extremely rare ...
The double duct sign is a radiological finding characterized by the simultaneous dilation of the common bile duct and the main pancreatic duct.This sign is significant because it often indicates an obstruction in the distal bile duct and pancreatic duct, frequently caused by serious underlying pathologies such as pancreatic carcinoma or periampullary tumors. [1]
Some uses for this procedure includes: drainage of bile/infected bile to relieve obstructive jaundice, to place a stent to dilate a stricture in the biliary system, stone removal, and rendezvous technique [4] where guidewire from the common bile duct (CBD) meets with duodenoscope (coming from the oesophagus into the stomach and then duodenum) at the major duodenal papilla.
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 ...
In patients with deranged liver function tests, ultrasound may show increased liver size (hepatomegaly), increased reflectiveness (which might, for example, indicate cholestasis), gallbladder or bile duct diseases, or a tumor in the liver. Ultrasonography of liver tumors involves two stages: detection and characterization.