Yersinia granulomatous appendicitis

Topic Completed: 1 August 2012

Minor changes: 20 August 2019

Copyright: (c) 2003-2019,, Inc.

PubMed Search: Yersinia granulomatous appendicitis

Page views in 2019: 858
Page views in 2020 to date: 392
Cite this page: Mansouri J. Yersinia granulomatous appendicitis. website. Accessed May 30th, 2020.
Definition / general
  • Detected in 25% (10 of 40) cases of granulomatous appendicitis by PCR, either Y. enterocolitica or Y. pseudotuberculosis (Am J Surg Pathol 2001;25:508)
  • Some patients may develop Crohn’s disease
  • Histology similar to non-Yersinia granulomatous appendicitis (differentiate by PCR)
Microscopic (histologic) description
  • Epithelioid granulomas with lymphoid cuffing, transmural inflammation with lymphoid aggregates, mucosal ulceration, cryptitis, usually no bacteria identified
Back to top