Congenital anomalies

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

Revised: 5 October 2018, last major update September 2012

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

PubMed Search: Gallbladder heterotopia[TIAB]

Cite this page: Gulwani, H. Heterotopia. website. Accessed November 17th, 2018.
Definition / general
  • Also called ectopia or choristoma
  • Normal tissue in abnormal location
  • Usually incidental
  • Includes liver parenchymal nodules, usually 2.5 cm or less, suspended to gallbladder by mesenteric stalk (DD: accessory lobe)
  • Gastric heterotopia arises as intramural nodules, plaques or polyps, in neck or cystic duct, rarely with peptic ulceration
  • Pancreatic heterotopia has acinar tissue, rarely islets, that may cause acute pancreatitis in gallbladder (Ryoikibetsu Shokogun Shirizu 1996;(9):360)
Case reports
Microscopic (histologic) images

Images hosted on other servers:

Gastric heterotopia

Pancreas heterotopia of common bile duct

Various images