Yersinia pseudotuberculosis with inflammation of the appendix: a case report.

Human enteric infection with Yersinia enterocolitica or Yersinia pseudotuberculosis may masquerade clinically as acute appendicitis but it is unusual for the appendix to be histologically inflamed. We report a case of Yersinia pseudotuberculosis infection in which acute appendicitis was present in the absence of terminal ileitis.