NCI Dictionary of Cancer Terms
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stage 0 distal extrahepatic bile duct carcinoma in situ (... 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