Extrahepatic bile ducts

Author: Hanni Gulwani, M.D. (see Authors page)

Revised: 8 February 2018, last major update September 2012

Copyright: (c) 2003-2018, PathologyOutlines.com, Inc.

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

Cite this page: Gulwani, H. Adenoma. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/gallbladderextrahepaticadenoma.html. Accessed November 17th, 2018.
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