Other nonneoplastic

Inverted appendix

Topic Completed: 1 August 2012

Minor changes: 4 May 2021

Copyright: 2003-2021,, Inc.

PubMed Search: Inverted appendix

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Cite this page: Mansouri J. Inverted appendix. website. Accessed October 18th, 2021.
Definition / general
  • Appendix is inverted into cecum and appears as a polyp
  • Congenital or due to intussusception
Clinical features
Clinical images

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Case reports
Gross description
  • Resembles cecal polyp
  • Inverted stump resembles a polyp at appendiceal orifice in patients post-appendectomy, usually with purse-string suture
Microscopic (histologic) description
  • Normal mucosa with numerous lymphoid follicles
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