Users' questions

Where is the common bile duct measured?

Where is the common bile duct measured?

Common bile duct was measured at three locations- at the porta hepatis, in the most distal aspect of head of pancreas and mid-way between these points.

How do you test for common bile duct?

A small catheter (tube) is passed out of the end of the endoscope and into the common bile duct. A small amount of contrast dye is injected through the catheter. The dye helps outline the bile ducts and pancreatic duct as x-rays are taken. The images can show narrowing or blockage of these ducts.

What is the normal measurement for the common bile duct?

The mean diameter of the normal common duct was 4.1 mm. A common duct greater than 7 mm in diameter can be seen in (a) nonjaundiced patients with gallstones and/or pancreatitis, or (b) jaundiced patients with common duct obstruction by stone or tumor.

Where is bile duct located?

The bile ducts are a series of thin tubes that go from the liver to the small intestine. Their main job is to allow a fluid called bile to go from the liver and gallbladder into the small intestine, where it helps digest the fats in food.

Is 6mm bile duct normal?

Conventionally, the upper limit of normal for the common bile duct as measured by ultrasound is considered to be 6 mm. This review is a somewhat personalized account of how that number became the convention and cautions the reader to avoid being slavish in the use of this number.

What are symptoms of bile duct blockage?

Symptoms may include:

  • Abdominal pain in the upper right side.
  • Dark urine.
  • Fever.
  • Itching.
  • Jaundice (yellow skin color)
  • Nausea and vomiting.
  • Pale-colored stools.

Can a CT scan show a blocked bile duct?

CT scans can show gallstones, or complications such as infection and blockage of the gallbladder or bile ducts.

What are the symptoms of a dilated bile duct?

What are the symptoms of biliary obstruction?

  • light-colored stools.
  • dark urine.
  • jaundice (yellowish eyes or skin)
  • itching.
  • pain in the upper right side of the abdomen.
  • nausea.
  • vomiting.
  • weight loss.

How can you tell if you have a blocked bile duct?

Diagnosis of Biliary Obstruction If your blood test results suggest biliary obstruction, your doctor may confirm the diagnosis using: Ultrasound. Computed tomography. Magnetic resonance cholangiopancreatography.

What are the symptoms of a blocked bile duct?


  • Abdominal pain in the upper right side.
  • Dark urine.
  • Fever.
  • Itching.
  • Jaundice (yellow skin color)
  • Nausea and vomiting.
  • Pale-colored stools.

Is a dilated bile duct serious?

Obstruction of any of these bile ducts is referred to as a biliary obstruction. Many of the conditions related to biliary obstructions can be treated successfully. However, if the blockage remains untreated for a long time, it can lead to life-threatening diseases of the liver.

Can a dilated common bile duct cause pain?

Obstruction of the common bile duct may also lead to obstruction of the pancreatic duct because these ducts are usually connected. The most common symptom is upper abdominal pain on the right side of the body, where the liver and gallbladder are situated. The pain may start suddenly and be intense.

What is the normal measure of the common bile duct?

The consensus is that most people have a common bile duct diameter of around 5mm, +/- 1 mm. However, there are reports were people with no hepatobilliary disease have a “normal” common bile duct size up to 10 mm. Also, there is a correlation between common bile duct diameter and age.

How long can you leave a biliary stent in?

The stents cannot be kept for a long time in bile duct. Plastic stent needs to be removed and replaced in 3 to 4 months while metal stents can be kept for a longer time before it is replaced.

What is the distal common bile duct?

Distal extrahepatic bile duct. This duct is formed by the common bile duct. It is farther away from the liver, between the junction where the cystic duct joins the common hepatic duct and the ampulla of Vater (but does not include these structures).

What are common bile duct stones?

Common bile duct stone. Common bile duct stone, also known as choledocholithiasis, is the presence of gallstones in the common bile duct (CBD) (thus choledocho- + lithiasis).