Colon non tumor
Non-neoplastic, non-congenital lesions
Gastric heterotopia

Author: Raul S. Gonzalez, M.D. (see Authors page)

Revised: 10 January 2017, last major update September 2013

Copyright: (c) 2003-2017,, Inc.

PubMed Search: gastric heterotopia colon
Cite this page: Gastric heterotopia. website. Accessed July 23rd, 2018.
Definition / general
  • Gastric tissue aberrantly present in colon
  • See also heterotopia topic
  • < 50 cases reported
Clinical features
  • Mean age 18 years, but wide range
  • Slight male predominance
  • Associated with other heterotopias, with vertebral and digital anomalies
  • In rectum, usually presents with rectal bleeding and tenesmus (J Clin Gastroenterol 1994;19:41)
  • At colonoscopy, may appear as polyp, ulcer or diverticulum
Case reports
  • Excision, H2 blockers
Microscopic (histologic) description
  • Gastric tissue (typically oxyntic-type but may be pyloric-type) in colon
  • Helicobacter pylori organisms may be present
Microscopic (histologic) images

Images hosted on other servers:

Gastric and colonic mucosa

Gastric and colonic mucosa

Gastric (left) and colonic (right) mucosae

Gastric mucosa with prominent parietal cells

Heterotopic gastric mucosa with cystic dilatation