title: [Chronic and lingering Yersinia ileitis].
abstract: OBJECTIVE
  To study the incidence, clinical manifestations, and diagnosis of chronic and lingering Yersinia ileitis.
  
  
  METHODS
  82 patients with pains in the right iliac area. The coagglutination test was used to reveal Y. pseudotuberculosis and Y. enterocolitica antigens as part of circulating immune complexes in the serum and coprofiltrates.
  
  
  RESULTS
  Correct diagnosis was established 3 months to 2 years after the acute period of the disease. After etiotropic treatment, 2 patients continued to have the steady pain syndrome in the right iliac area, which is likely to be associated with periileitis and, 46 patients developed chronic Yersinia ileitis, as evidenced by their positive serological reactions to antigens and iliac morphological findings. Development of a residual phase may be presumed in 2 patients who continued to have stool disorders and abdominal pain, but no pseudotuberculous antigens in the stool and blood.
  
  
  CONCLUSIONS
  Patients with lingering (up to 3 months) and chronic (over 3 months) Yersinia ileitis were 38.1% of the total number of those with ileocecal pain. The chronic nature of Yersinia ileitis is associated with late diagnosis, developed periileitis, and immunity disorders.
authors.forename: A I
authors.initials: AI
authors.lastname: Parfenov
authors.forename: M D
authors.initials: MD
authors.lastname: Chizhikova
mesh_terms: D000293:Adolescent; D000368:Aged; D000937:Antigen-Antibody Reactions; D000942:Antigens, Bacterial / Q000032:analysis; D002908:Chronic Disease; D003424:Crohn Disease / Q000175:diagnosis; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007079:Ileitis / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000209:etiology* / Q000382:microbiology; D008297:Male; D008875:Middle Aged; D011859:Radiography; D013997:Time Factors; D015009:Yersinia Infections / Q000175:diagnosis* / Q000276:immunology; D015008:Yersinia enterocolitica / Q000276:immunology / Q000302:isolation & purification; D015011:Yersinia pseudotuberculosis / Q000276:immunology / Q000302:isolation & purification; D015012:Yersinia pseudotuberculosis Infections / Q000175:diagnosis / Q000276:immunology
chemical_list: D000942:Antigens, Bacterial