Gastrointestinal syphilis (Treponema pallidum). Gastrointestinal syphilis commonly involves the anorectum, although the stomach is perhaps the most frequently reported site of involvement in the GI tract. Homosexual males are at particularly high risk of infection, and many authorities believe that syphilis, particularly anorectal syphilis, is markedly underdiagnosed due to the variability of the clinical findings (syphilis is, after all, known as “the great mimicker”) and a low index of suspicion.


Spirochete Spirochetosis Syphilis Treponema pallidum Proctitis Gastritis 

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© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Department of PathologyUniversity of Arkansas for Medical SciencesLittle RockUSA

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