A Dilated CBD (common bile duct) refers to the small tube which transfers bile to your small intestine, having been enlarged by your liver, is a normal level. On imaging, a mild dilation is usually at 7-8 mm, whereas an amount over 10 mm may lead to the need of additional testing. The pancreatic duct tends to coexist with the common bile duct hence problems in one duct may compromise the other.
Many people with a mildly dilated CBD have no symptoms. When signs do appear, they may include:
Several factors can lead to a widened common bile duct:
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We've successfully treated more than 443 patients, helping individuals improve their digestive health and overall well-being through expert, personalized care.
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Dr. Bharat Pothuri is a Board-Certified Gastroenterologist and Hepatologist. With extensive experience in digestive health, he specializes in advanced endoscopic procedures, chronic GI disorder management, and preventive care. Dr. Pothuri is dedicated to providing expert, patient-focused insights to help improve gut health and overall well-being.
The most frequent imaging studies to identify a dilated CBD are ultrasound or MRI. ERCP (Endoscopic Retrograde Cholangiopancreatography) is often used not only to confirm the diagnosis but also to provide urgent treatment if necessary.
A normal bile duct measuring more than 7 mm in adults under 60 is considered dilated. In elderly patients, values above 10 mm typically require further investigation.
Yes. Patients may experience upper right abdominal or back pain, and jaundice can occur if the duct is obstructed by gallstones, scar tissue, or other causes.
Fusiform dilatation is a uniform, spindle-shaped enlargement of the common bile duct, which can be clearly visualized on cross-sectional imaging.
Post-cholecystectomy CBD dilatation is usually mild and asymptomatic. However, if patients develop pain, jaundice, or signs of infection, prompt evaluation and treatment are necessary.
Yes. ERCP is a minimally invasive treatment that can remove stones, clear obstructions, and insert stents without requiring open surgery.
The ICD-10 code for bile duct disorders, including dilated CBD, is generally K83.1, though it may vary depending on specific findings and medical records.
A healthy diet, such as a low-fat diet, can help reduce bile production and improve symptoms, but it cannot reverse existing obstruction or dilation of the duct.
Follow-up depends on your specific situation and should be determined by your gastroenterologist. For stable, asymptomatic dilatation, imaging (ultrasound or MRI) may be advised every 6-12 months.
A gastroenterologist should be consulted if there is jaundice, persistent abdominal pain, fever or chills, or if imaging shows dilation exceeding 10 mm.
