Reviewer: Jaleh Mansouri, M.D., (see Authors page)

Revised: 26 January 2016, last major update August 2012

Copyright: (c) 2003-2016,, Inc.

PubMed Search: Duplication appendix
Cite this page: Duplication. website. Accessed June 21st, 2018.
Definition / general
  • Duplications usually have complete and separate inner circular and outer longitudinal muscle bands, and prominent lymphoid component

    Type A:
    • Common base, single cecum and bifurcated distal portion
    • Usually incidental finding

    Type B:
    • Two separate appendices with distinct bases arising from common cecum
    • Associated with other system anomalies, but usually incidental finding

    Type C:
    • Two cecal structures, each with its own single appendix
    • Associated with other organ duplications; extensive corrective surgery required
Gross images

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Duplicated appendix