Intrahepatic Biliary System

by Hetal Verma, MD

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    About the Lecture

    The lecture Intrahepatic Biliary System by Hetal Verma, MD is from the course Abdominal Radiology.

    Included Quiz Questions

    1. MRCP
    2. Abdominal CT with contrast.
    3. Abdominal CT without contrast to evaluate for stones.
    4. HIDA scan.
    5. No further imaging needed.
    1. The most common cause of dilatation is congenital.
    2. The bile ducts should be <3 mm in diameter.
    3. It can become dilated due to any mass lesion obstructing the central biliary system.
    4. An ultrasound helps to identify dilated ducts and also differentiate from the portal vein which has an echogenic rim around it.
    5. On a contrast CT scan, the portal vein fills up with contrast and the surrounding hypodense linear areas represent bile ducts.
    1. Cholangiocarcinoma can be located at any level of the biliary tree.
    2. Klatskin tumor is cholangiocarcinoma located at end of the left hepatic ducts.
    3. Imaging studies such as CT and MRCP show a klatskin tumor as a low-density mass at the confluence of the middle and main hepatic ducts.
    4. There is an abrupt cutoff of the bile ducts on imaging of Klatskin tumor.
    5. Cholangiocarcinoma is a metastasis of hepatic cancer into the biliary system.

    Author of lecture Intrahepatic Biliary System

     Hetal Verma, MD

    Hetal Verma, MD

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