Appendix
General
Duplication


Topic Completed: 1 August 2012

Revised: 21 January 2019

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PubMed Search: Duplication appendix
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Cite this page: Mansouri J. Duplication. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/appendixduplication.html. Accessed March 22nd, 2019.
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

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