Biliary cancer is classified into stages 0 through IV to indicate to what extent the cancer has invaded the organ in which it began, and whether it has infiltrated nearby tissues, other organs, or the lymph nodes (small organs that produce immune system cells that circulate throughout the body).
- Stage 0: Abnormal cells are growing in the inner layer of the affected organ. These cells may develop into cancer. This stage is also called carcinoma in situ.
- Stage I: Cancer is found in the bile duct only or has spread through the bile duct wall.
- Stage II: Cancer has spread from the bile duct to the liver, gall bladder, pancreas, either side of the artery or veins that connect to the liver, or to the lymph nodes.
- Stage III: Cancer has spread to the artery or vein that connects to the liver, or to nearby organs such as the colon, the stomach, the small intestine, or the abdominal wall. It may also have spread to the lymph nodes.
- Stage IV: Cancer has spread to organs far away from the bile duct. It may have spread to lymph nodes.
Learn about treatment for biliary cancer.
Read more about gastrointestinal cancer:
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