Hepatobiliary cancer diagnostics combine several imaging techniques, blood tests, and specialized procedures to detect cancers affecting the liver, bile ducts, gallbladder, and pancreas. Early and accurate diagnosis is crucial because these cancers can progress quickly and often show few symptoms in their initial stages.

Who Should Undergo Diagnostics and When to Seek Them

People who experience certain symptoms should seek medical attention promptly to determine if they might have hepatobiliary cancer. These symptoms often appear gradually and can be easy to overlook or attribute to other, less serious conditions. However, recognizing them early and consulting a healthcare provider can make a significant difference in treatment outcomes.^[1]

You should consider seeking diagnostic testing if you notice jaundice, which is the yellowing of your skin and the whites of your eyes. This happens when bile ducts become blocked and bile cannot flow properly through your digestive system. Jaundice is one of the most common and noticeable signs that something may be wrong with your liver or bile ducts.^[1]

Pain in the upper right part of your abdomen is another important symptom that should not be ignored. This discomfort can be persistent or come and go, and it may feel like a dull ache or sharp pain. Because the liver, gallbladder, and bile ducts are located in this area, pain here can signal a problem with any of these organs.^[1]

Unintended and significant weight loss, along with persistent and unexplained tiredness, are additional warning signs. When cancer affects the hepatobiliary system, your body may struggle to digest food properly and absorb nutrients. This can lead to fatigue and a loss of appetite, which in turn causes weight loss that you did not plan or want.^[1]

Nausea, vomiting, and digestive disturbances are also symptoms that should prompt you to see a doctor. These can occur because the hepatobiliary system plays a crucial role in digestion, and when it is not working correctly, you may feel sick or have trouble keeping food down.^[1]

Certain people are at higher risk for developing hepatobiliary cancers and may benefit from regular screening even before symptoms appear. If you have a long-term infection with hepatitis B virus or hepatitis C virus, you should discuss screening with your doctor. These infections damage the liver over time and significantly increase the risk of liver cancer.^[2][6]

People with cirrhosis, which is scarring of the liver, are also at elevated risk. Cirrhosis can be caused by hepatitis infections, heavy alcohol use, or conditions like nonalcoholic fatty liver disease. If you have cirrhosis, your healthcare provider may recommend regular monitoring to catch any cancer early.^[6]

Other risk factors include being overweight or having obesity, smoking cigarettes, drinking too much alcohol, having diabetes, and certain inherited conditions like hemochromatosis, where the body stores too much iron. If you have any of these risk factors, it is wise to talk to your doctor about whether you should undergo screening tests.^[6]

Diagnostic Methods

Doctors use a combination of methods to diagnose hepatobiliary cancers and to distinguish them from other conditions that can cause similar symptoms. These methods include imaging techniques, blood tests, and sometimes procedures that allow doctors to look inside the body or take tissue samples for examination.^[1]

Imaging Techniques

Imaging tests are often the first step in diagnosing hepatobiliary cancers because they can show tumors and other abnormalities inside the body without surgery. Ultrasound is a common starting point. It uses sound waves to create pictures of the liver, gallbladder, bile ducts, and nearby organs. Ultrasound is painless, does not use radiation, and can help identify masses or blockages.^[1][13]

Computed tomography, or CT scans, are more detailed imaging tests that use x-rays to create cross-sectional images of the body. A CT scan can show the size and location of tumors, whether they have spread to nearby organs, and how the blood vessels around the liver are affected. Sometimes a contrast dye is injected into your vein before the scan to make the images clearer.^[1][13]

Magnetic resonance imaging, or MRI, is another imaging technique that uses powerful magnets and radio waves instead of radiation to create detailed pictures. MRI is particularly good at showing soft tissues and can help doctors see the liver and bile ducts very clearly. It is often used when more detail is needed after an ultrasound or CT scan.^[1][13]

Sometimes liver cancer can be diagnosed reliably based on imaging studies alone, especially in people who already have liver disease. If the imaging shows a tumor with certain characteristics and the person has risk factors like cirrhosis or hepatitis, a diagnosis can often be made without needing a biopsy, which is the removal of a small tissue sample.^[8][20]

Blood Tests

Blood tests play an important role in diagnosing and monitoring hepatobiliary cancers. Tumor markers are substances that can be found in the blood when certain cancers are present. For liver cancer, doctors often check a marker called alpha-fetoprotein, or AFP. High levels of AFP in the blood can suggest the presence of hepatocellular carcinoma, although not all liver cancers produce this marker.^[1][13]

Liver function tests measure how well your liver is working by checking levels of enzymes, proteins, and other substances in your blood. These tests can show if the liver is damaged or if bile ducts are blocked. While they do not diagnose cancer directly, they provide important information about the health of your liver and can guide further testing.^[1][13]

Endoscopic Procedures

When imaging and blood tests are not enough to make a diagnosis, doctors may use endoscopic procedures to look inside the body. Endoscopic retrograde cholangiopancreatography, or ERCP, is a procedure where a thin, flexible tube with a camera on the end is passed through the mouth, down the throat, and into the small intestine. From there, the doctor can inject dye into the bile ducts and take x-rays to see if there are any blockages or tumors.^[13]

During an ERCP, the doctor can also take small tissue samples, called biopsies, from the bile ducts to examine under a microscope. This helps confirm whether cancer is present and what type it is. Endoscopic procedures are usually done under sedation so you do not feel discomfort during the test.^[13]

Biopsy

A biopsy involves removing a small piece of tissue from the liver, bile duct, or gallbladder so it can be examined under a microscope by a specialist called a pathologist. The pathologist looks for cancer cells and can determine the type and characteristics of the cancer. However, as mentioned earlier, liver cancer is one of the cancers where a biopsy is not always necessary if imaging and blood tests provide enough information.^[8][20]

When a biopsy is needed, it can be done in several ways. A percutaneous biopsy is performed by inserting a thin needle through the skin and into the liver or tumor, guided by ultrasound or CT imaging. This is usually done with local anesthesia to numb the area. In some cases, a biopsy may be done during surgery or an endoscopic procedure.^[8]

Diagnostics for Clinical Trial Qualification

Clinical trials are research studies that test new treatments or combinations of treatments to find better ways to treat hepatobiliary cancers. If you are considering joining a clinical trial, you will need to undergo certain diagnostic tests to determine if you qualify. These tests help ensure that the trial is safe for you and that you are likely to benefit from the treatment being studied.^[2]

One of the most important criteria for entering a clinical trial is confirming your diagnosis. This usually requires imaging tests such as CT scans or MRI to show the location, size, and extent of the cancer. Blood tests, including tumor markers and liver function tests, are also standard requirements to assess the stage of the disease and how well your liver is working.^[1][13]

Staging is the process of determining how advanced the cancer is, meaning whether it is localized to one area or has spread to other parts of the body. Clinical trials often have specific requirements about the stage of cancer they will accept. For example, some trials only include patients with early-stage cancer, while others focus on advanced or metastatic disease. Staging is done using imaging tests and sometimes biopsies.^[9]

In addition to imaging and blood tests, some clinical trials may require tissue samples from your tumor to test for specific genetic markers or characteristics. This is especially true for trials testing targeted therapies, which are treatments designed to attack cancer cells with specific genetic changes. A biopsy of the tumor can provide the tissue needed for these tests.^[9]

Your overall health and the health of your liver are also important factors. Doctors will assess your performance status, which is a measure of how well you are able to carry out daily activities. Blood tests will check your liver function, kidney function, and blood cell counts to make sure your body is strong enough to tolerate the treatment being tested in the trial.^[2]

It is important to discuss with your healthcare team whether a clinical trial might be right for you. Clinical trials can offer access to new treatments that are not yet widely available, and they contribute to advancing medical knowledge that can help future patients.^[2]