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Yersinia enterocolitica
Epideiology:
- ingestion of contaminated food, especially undercooked pork
Pathology:
- Yersinina is trophic for gastrointestinal lymphoid tissue
- infection can mimic appendicitis [1]
Clinical manifestations:
- fever
- diarrhea
- right lower quadrant pain
- pharyngitis
Laboratory:
- Yersinia enterocolitica serology
- Yersinia enterocolitica Ab in CSF
- Yersinia enterocolitica Ab in serum
- Yersinia enterocolitica serotype
- Yersinia enterocolitica identified by culture
- stool, blood, throat swab or infected tissue
- sucrose fermenter
- Yersinia enterocolitica DNA in stool [1]
Complications:
- intestinal perforation
- reactive arthritis
- hemolytic anemia
- erythema nodosum
Differential diagnosis:
- appendicitis
Management:
- fluoroquinolone when treatment indicated [1]
- if severe disease, 3rd generation cephalosporin + gentamicin recommended
- trimethoprim-sulfamethoxazole previously drug of choice
Related
culture of stool for Yersinia
General
Yersinia
Properties
KINGDOM: monera
DIVISION: SCHIZOMYCETES
References
- Medical Knowledge Self Assessment Program (MKSAP) 17, 18, 19.
American College of Physicians, Philadelphia 2015, 2018, 2021.
- Medical Knowledge Self Assessment Program (MKSAP) 19
Board Basics. An Enhancement to MKSAP19.
American College of Physicians, Philadelphia 2022