title: Mesenteric lymph node abscess due to Yersinia enterocolitica: case report and review of the literature.
abstract: We describe the case of a 74-year-old female with a mesenteric lymph node abscess caused by a Yersinia enterocolitica infection. She had been administered an immunosuppressive drug and was admitted to the hospital due to a high fever, right lower abdominal pain and advanced leukocytosis. We initially diagnosed her with lymphadenitis based on the symptoms and the imaging studies. However, conservative treatment with antibiotics did not yield any improvement, and abscess formation was suspected. Surgical treatment was performed, and the culture from the drainage fluid grew Y. enterocolitica. The histological findings suggested that an ulcerative lesion of the terminal ileum was the entry port of Y. enterocolitica. The pathogen infected the mesenteric lymph nodes and spread along the ileocecal lymphatic vessels, resulting in the formation of an abscess. We also provide a review of the previously published literature on lymph node abscesses due to Y. enterocolitica infections.
authors.affiliation: Department of Gastroenterology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan.
authors.forename: Ken
authors.initials: K
authors.lastname: Watanabe
authors.forename: Noboru
authors.initials: N
authors.lastname: Watanabe
authors.forename: Mario
authors.initials: M
authors.lastname: Jin
authors.forename: Tamotsu
authors.initials: T
authors.lastname: Matsuhashi
authors.forename: Shigeto
authors.initials: S
authors.lastname: Koizumi
authors.forename: Kengo
authors.initials: K
authors.lastname: Onochi
authors.forename: Masayuki
authors.initials: M
authors.lastname: Sawaguchi
authors.forename: Shin
authors.initials: S
authors.lastname: Tawaraya
authors.forename: Hideaki
authors.initials: H
authors.lastname: Miyazawa
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Uchinami
authors.forename: Yuzo
authors.initials: Y
authors.lastname: Yamamoto
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Nanjo
authors.forename: Hirohide
authors.initials: H
authors.lastname: Ohnishi
authors.forename: Hirosato
authors.initials: H
authors.lastname: Mashima
mesh_terms: D000038:Abscess / Q000601:surgery*; D000368:Aged; D005260:Female; D006801:Humans; D008206:Lymphatic Diseases / Q000382:microbiology* / Q000601:surgery*; D008643:Mesentery; D015009:Yersinia Infections / Q000601:surgery*; D015008:Yersinia enterocolitica