Extrahepatic bile ducts

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Extrahepatic bile ducts

Tumors

Adenoma

Reviewer: Hanni Gulwani, M.D. (see Reviewers page)
Revised: 15 February 2013, last major update September 2012
Copyright: (c) 2003-2013, PathologyOutlines.com, Inc.

General
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● Incidence only 10% of carcinoma
● More common in gallbladder than extrahepatic biliary tree

Treatment
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● Total excision

Gross description
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● 1-3 cm, usually in common bile duct
● Single or multiple
● Pedunculated or sessile

Micro description
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● Tubular, tubulovillous, villous
● Low to high grade dysplasia
● Usually lined by pseudostratified columnar epithelium and composed of intestinal type glands with goblet cells, endocrine cells, Paneth cells

Stains
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● Express foregut antigens (D10, 1F6, MUC6, MUC5AC, and TFF2) and secrete acid mucin (Am J Surg Pathol 2010;34:1312)

End of Extrahepatic bile ducts > Tumors > Adenoma

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