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Questions About Cancer? 1-800-4-CANCER

NCI Dictionary of Cancer Terms

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stage 0 distal extrahepatic bile duct carcinoma in situ  listen  (... DIS-tul EK-struh-heh-PA-tik bile dukt KAR-sih-NOH-muh in SY-too)

  Abnormal cells are found in the innermost layer of tissue lining the distal extrahepatic bile duct (where the bile duct empties into the small intestine). These abnormal cells may become cancer and spread into nearby normal tissue.