What causes intrahepatic duct dilation?

HG Dilated bile ducts are usually caused by an obstruction of the biliary tree, which can be due to stones, tumors (usually of either the papilla of Vater or the pancreas), benign strictures (due to chronic pancreatitis or primary sclerosing cholangitis), benign stenosis of the papilla (ie, papillary stenosis), or a …

What does biliary ductal dilatation mean?

Biliary dilatation (also called dilation) is a procedure to stretch bile ducts that are too narrow. Bile, a substance that helps in the digestion of fats, is made in the liver and stored in the gallbladder. After meals it is excreted into the intestines via the bile ducts (also called biliary ducts).

How do you treat a dilated bile duct?

Treatment of Biliary Obstruction For bile duct obstruction caused by cancer, your doctor will widen and drain your bile ducts using endoscopy or by inserting a needle through your skin. Your doctor may recommend chemotherapy, radiotherapy, or surgery to treat your cancer.

Is it bad to have a dilated bile duct?

The size of the common bile duct, if dilated, may suggest a blockage downstream. This is a specific finding that is looked for when a patient gets an ultrasound for a suspected liver or Gallbladder disease. When a patient has their gallbladder removed, the common bile duct dilates over some time.

How often do choledochal cysts occur in the biliary duct?

Diagnosis relies on the exclusion of other conditions (e.g. tumor, gallstone , inflammation) as a cause of biliary duct dilatation. Choledochal cysts are rare, with an incidence of 1:100,000-150,000.

How to diagnose a choledochal cyst by ultrasound?

Ultrasound. The key to the diagnosis is a dilated cystic lesion which communicates with the bile duct and is separate from the gall bladder. A careful search for other causes needs to also be undertaken (see differential below), remaining cognizant that both stone formation and malignancy are associated with choledochal cysts.

What causes focal dilatation in the bile duct?

Ultrasound. Focal dilatation may be a result of downstream stricture, or damage to the elasticity of that segment of bile duct, possibly from prior stone passage.

What are the most common complications of choledochal cysts?

The two most frequent complications of choledochal cysts are stone formation and malignancy. Complications include: stone formation: most common. malignancy cholangiocarcinoma. lifetime incidence 10-15% 5.

What causes intrahepatic duct dilation? HG Dilated bile ducts are usually caused by an obstruction of the biliary tree, which can be due to stones, tumors (usually of either the papilla of Vater or the pancreas), benign strictures (due to chronic pancreatitis or primary sclerosing cholangitis), benign stenosis of the papilla (ie, papillary stenosis), or…