A dilated CBD (common bile duct) means the small tube that carries bile from your liver to your small intestine is wider than normal. On imaging, mild dilation is typically 7-8 mm, while measurements above 10 mm often prompt further evaluation. Because the pancreatic duct runs alongside the common bile duct, issues in one can affect 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:
At GastroDoxs in Katy, TX, our specialists deliver expert care for dilated common bile duct conditions using advanced imaging, ERCP services, and tailored treatment plans. We combine cutting-edge technology with compassionate, patient-centered support to help you achieve lasting relief and optimal digestive health. Ready to restore healthy bile flow? Book your appointment with GastroDoxs today.
We've successfully treated more than 443 patients, helping individuals improve their digestive health and overall well-being through expert, personalized care.
With over 20 years of experience, GastroDoxs has been a trusted provider of gastroenterology care, focusing on delivering the best outcomes for patients
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.
A dilated CBD is most often identified with imaging tests such as ultrasound or MRI. In many cases, an ERCP (Endoscopic Retrograde Cholangiopancreatography) is used both to confirm the diagnosis and to provide immediate treatment if needed.
In adults under 60 years old, a common bile duct measuring over 7 mm is considered dilated. For older adults, measurements above 10 mm typically warrant further evaluation.
Yes. When the duct is blocked by gallstones, scar tissue, or other obstructions, patients may experience upper right abdominal or back pain, and sometimes jaundice.
Fusiform dilatation refers to a uniform, spindle-shaped enlargement of the common bile duct, often visible on cross-sectional imaging.
Post-cholecystectomy dilatation is often mild and asymptomatic. However, if patients develop pain, jaundice, or signs of infection, prompt evaluation and treatment are required.
Yes. ERCP is a minimally invasive procedure that can remove stones, clear blockages, and place stents without the need for open surgery.
The ICD-10 classification for bile duct disorders, including dilated CBD, often falls under code K83.1, though exact coding may vary based on specific findings and documentation.
While dietary changes-such as a low-fat diet-may reduce bile production and ease symptoms, they cannot reverse an existing obstruction or dilation in the duct.
Your gastroenterologist will tailor follow-up intervals to your condition. For stable, asymptomatic dilatation, imaging (ultrasound or MRI) is often recommended every 6-12 months.
You should consult a gastroenterologist if you develop jaundice, persistent abdominal pain, fever or chills, or if imaging shows a dilation greater than 10 mm.
