Extrahepatic bile ducts
Adenoma of extrahepatic bile ducts

Topic Completed: 1 September 2012

Minor changes: 20 September 2019

Copyright: 2003-2019, PathologyOutlines.com, Inc.

PubMed Search: Extrahepatic bile ducts adenoma[TI] full text[sb]

Hanni Gulwani, M.B.B.S.
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Cite this page: Gulwani H. Adenoma of extrahepatic bile ducts. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/gallbladderextrahepaticadenoma.html. Accessed May 26th, 2020.
Definition / general
  • Incidence only 10% of carcinoma
  • More common in gallbladder than extrahepatic biliary tree
  • Total excision
Gross description
  • 1 - 3 cm, usually in common bile duct
  • Single or multiple
  • Pedunculated or sessile
Microscopic (histologic) description
  • 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
Positive stains
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