What is cholangiocarcinoma?

The bile ducts are small tubes that carry bile from the liver towards the bowel. Doctors describe a tumour as intrahepatic when it starts within the liver, perihilar when it starts where major ducts leave the liver, or distal when it arises farther down the duct near the pancreas and small bowel.

A tumour may narrow a duct and prevent bile from draining normally. People with cholangiocarcinoma can present with yellow skin or eyes, dark urine, pale stools, itching, abdominal discomfort, reduced appetite or unexplained weight loss. Tumours growing inside the liver may instead be discovered on imaging before they obstruct a main duct.

Symptoms alone cannot establish the diagnosis. Assessment may combine blood tests, detailed imaging, endoscopic or image-guided procedures and a tissue sample. The team examines the cancer's location, local extent, possible spread and molecular features, together with liver function and overall health.

After a suspected or confirmed diagnosis, arrange review with a team experienced in liver and bile duct cancers. Keep copies of scan images, pathology reports, blood results and records of any stent or drain. Accurate classification of the tumour's location helps determine which procedures are relevant.

Treatment may involve tumour-removal surgery, drug treatment, radiotherapy in selected situations, or procedures to restore bile flow. Some tumours have molecular changes that can guide targeted therapy, so testing may be discussed. Symptom relief, nutrition and emotional support should run alongside cancer-directed care.

Arrange medical assessment for persistent jaundice, dark urine with pale stools, unexplained weight loss or ongoing upper-abdominal discomfort. Seek urgent care for fever or shaking chills together with jaundice, confusion, fainting, severe pain or profound weakness because an obstructed bile duct can become infected. Anyone with a bile-duct stent or drain should report blockage, displacement or leakage promptly.

Ask which part of the bile duct is involved, how the diagnosis was confirmed and whether further staging is needed. Request a plain-language explanation of the treatment goal, whether surgery can be considered, whether bile drainage or molecular testing is appropriate, and which symptoms should trigger an urgent call.