Background
Yersinia species are gram-negative coccobacilli that are facultative anaerobes. Y. enterocolitica and Y. pseudotuberculosis are the species that most commonly cause enterocolitis. Clinically, Yersinia enterocolitis leads to ileitis and mesenteric adenitis and thus is often misdiagnosed as acute appendicitis. Endoscopic findings include small ulcers mainly involving the ileocecal region such that the disease should be differentiated from inflammatory bowel disease [1, 2]. The final diagnosis is based on the isolation of Y. enterocolitica in the feces or biopsied tissues, e.g. obtained during endoscopic biopsy, and/or elevated serum antibody titers to the bacteria.
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Matsumoto T, Iida M, Matsui T, Sakamoto K, Fuchigami T, Haraguchi Y, Fujishima M (1990) Endoscopic findings in Yersinia enterocolitica enterocolitis. Gastrointest Endosc 36(6):583–7
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Multiple Choice Questionnaire
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1)
How do you define Yersinia Enterocolitica?
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a.
gram-negative coccobacilli
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b.
gram-positive coccobacilli
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c.
parasite
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d.
gram-negative bacterium
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e.
virus
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a.
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2)
Which are the most common endoscopic findings of Y. Enterocolitica?
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a.
small ulcers of the ileocecal region
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b.
deep ulcerations of the terminal ileum
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c.
aftoid lesions of the terminal ileum
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d.
deep colonic ulcerations
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a.
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3)
How can you detect Yersinia infection?
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a.
isolation in the feces
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b.
endoscopic biopsy
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c.
elevated serum antibody titers
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d.
all of them
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a.
1. a — 2.a — 3.d
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© 2013 Springer-Verlag Italia
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Fu, K., Konuma, H., Konuma, I. (2013). Yersinia Enterocolitis. In: Trecca, A. (eds) Atlas of Ileoscopy. Springer, Milano. https://doi.org/10.1007/978-88-470-5205-5_13
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DOI: https://doi.org/10.1007/978-88-470-5205-5_13
Publisher Name: Springer, Milano
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