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    Veterans Law

    Bile Duct Cancer VA Claims: Veterans of the Vietnam War & Cholangiocarcinoma

    Lisa Ioannilli

    April 15, 2019

    Updated: September 10, 2025

    Cholangiocarcinoma doctor's office

    CCK Law: Our Vital Role in Veterans Law

    Cholangiocarcinoma, or bile duct cancer, is a rare and often overlooked disease that can take decades to show symptoms. Because of its delayed onset and the challenges of diagnosis, many veterans may not realize the risks tied to their service until much later in life.

    For those who served in Vietnam, certain exposures make this condition especially relevant. While the Department of Veterans Affairs (VA) does not automatically presume a connection between bile duct cancer and service, understanding how it develops is an important step in knowing what options are available.

    In this article, CCK Law will discuss:

    • What bile duct cancer is
    • How bile duct cancers affects Vietnam veterans
    • Whether veterans can receive VA disability benefits for bile duct cancer
    • And more
    Who We Are: Chisholm Chisholm & Kilpatrick is the nation’s leading veterans law firm. Since 1999, CCK Law has grown to include more VA-accredited advocates and attorneys than any other firm and represents nearly 30,000 veterans or their dependents before Veterans Affairs or the U.S. Court of Appeals for Veterans Claims. CCK Law attorneys have argued many of the most precedent-setting cases in veterans law and recovered over $1 billion in wrongfully denied benefits.

    What is Cholangiocarcinoma (Bile Duct Cancer)?

    Cholangiocarcinoma (i.e., bile duct cancer) is a cancer of the biliary duct system, which includes the gallbladder, bile ducts, and certain cells inside the liver. This disease often goes undetected for long periods of time, as symptoms do not appear for nearly 30-40 years in most cases. However, when symptoms do present themselves, they typically include the following:

    • Jaundice (i.e., yellowing of the skin and the whites of the eyes
    • Pain in the abdomen
    • Dark urine
    • Light or “clay” colored stool
    • Fever
    • Itchy skin
    • Nausea and vomiting
    • Unexplained weight loss

    To test for cholangiocarcinoma, doctors rely on an individual’s medical history and physical examinations. They may employ a variety of blood tests and medical imaging (e.g., X-rays, CT scans, MRI scans, and/or ultrasound). To diagnose cholangiocarcinoma, doctors will often need to consult with specialists as well. Cholangiocarcinoma is very rare, but it becomes more common as people get older. However, there are several other risk factors aside from age that are particularly important to Vietnam War veterans.

    VA Disability Benefits for Cancer

    How Does Cholangiocarcinoma Affect Vietnam Veterans?

    Another risk factor for cholangiocarcinoma is past infection with tiny parasitic worms called liver flukes, which are found in the freshwaters of Southeast Asia. The presence of liver flukes is ten times higher in Southeast Asia than anywhere else in the world. People can become infected by eating raw or undercooked fish that have these parasites. Then, once eaten, the liver flukes grow to adulthood inside the human biliary duct system, causing infection that can lead to bile duct cancer. Opisthorchis verrini is the most common type of this parasite found in Vietnam.

    This is significant because there is a possibility that veterans who ate raw or undercooked freshwater fish during their service in Southeast Asia, such as Vietnam War veterans, might have been infected and later developed cholangiocarcinoma as a result. According to its website, VA is not currently aware of any studies that show bile duct cancer occurs more often in Vietnam veterans than in other groups of people. However, it is important to be aware of the risk of exposure due to service in Southeast Asia.

    Does Cholangiocarcinoma Qualify for VA Disability Benefits?

    Vietnam veterans are afforded a presumption of exposure to herbicide agents, including Agent Orange. As a result, VA will also presume service connection for certain conditions that are associated with Agent Orange exposure. Cholangiocarcinoma is not one of the presumptive conditions associated with herbicide exposure. Therefore, service connection must be established on a direct basis. This requires a nexus opinion linking your military service to your bile duct cancer.

    7 Things Every Veteran Should Know About Agent Orange

    VA’s History of Adjudicating Claims for Cholangiocarcinoma

    VA has a history of both granting and denying veterans’ claims for service connection for cholangiocarcinoma. However, in cases where service connection is granted, VA recognizes the connection between service in Vietnam and the later onset of the disease. Nevertheless, it may be helpful to seek a private medical opinion to establish a positive nexus.

    Call CCK Today

    If you are a veteran trying to receive VA disability benefits and need help with your appeal, then CCK Law may be able to help you. For over 25 years, we’ve been helping veterans get their benefits. Call us today at (800) 544-9144 for a free case evaluation with a member of our team.

    About the Author

    Bio photo of Lisa Ioannilli

    Lisa joined CCK in March 2012. Lisa is a Senior Attorney focusing on representing disabled veterans in claims pending before the U.S. Department of Veterans Affairs and the United States Court of Appeals for Veterans Claims.

    See more about Lisa