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: Cystadenoma extrahepatic bile ducts

Cite this page: Gulwani, H. Cystadenoma. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/gallbladdercystadenomaextrahepatic.html. Accessed September 22nd, 2018.
Definition / general
  • More uncommon in extrahepatic biliary system than in liver
  • Extremely rare in gallbladder
  • Usually women ages 42 - 55 years
  • Resembles pancreatic cystadenoma
Case reports
  • Excision, may recur or become malignant
Gross description
  • Unilocular or multilocular
  • Well defined cystic masses with serous, mucinous, bilious, hemorrhagic or mixed fluid
  • Outer fibrous wall
  • Inner surface is smooth, granular or trabeculated
Gross images

Images hosted on other servers:

Multilocular cyst

With multiple tumor nodules

Microscopic (histologic) description
  • Multiple locules lined by biliary type cuboidal or columnar epithelium
  • Stroma is cellular, resembling ovarian stroma in 85%, surrounded by hyalinized fibrous tissue
  • 13% have dysplastic changes
Microscopic (histologic) images

Images hosted on other servers:

Various images