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Histological Features of Eosinophilic Gastrointestinal Disorders Minako Hirahashi 1 , Hiroyuki Kobayashi 2 , Masazumi Tsuneyoshi 3 , Yutaka Koga 1 , Reiko Kumagai 1 , Mikako Osada 1 , Yoshiteru Kumagae 1 , Yukiko Kouno 1 , Shunsuke Takahashi 1 , Nobuyoshi Takizawa 1 , Risa Ichinose 1 , Yoshinao Oda 1 1Department of Anatomic Pathology, Graduate School of Medical Science Kyushu University, Fukuoka, Japan 2Institute of Gastroenterology, Fukuoka Sanno Hospital, Fukuoka, Japan 3Division of Pathology, Fukuoka Sannou Hospital, Fukuoka, Japan Keyword: 好酸球性食道炎 , 好酸球性胃腸炎 , 上皮内浸潤 , 粘膜生検組織 , 粘膜・粘膜下層型─筋層型─漿膜下層型 pp.1859-1871
Published Date 2013/12/25
DOI https://doi.org/10.11477/mf.1403114016
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 The aim of this description is to find some histological features of EGID(eosinophilic gastrointestinal disorders). We examined 34 esophageal biopsy specimens from 12 patients suspected to have EE(eosinophilic esophagitis), 30 gastrointestinal biopsy specimens from 5 patients suspected to have EGE(eosinophilic gastroenteritis), 3 intestinal biopsy specimens from one patient with NSAID enteritis, 9 ileocolonic biopsy specimens from one patient with collagenous colitis and 12 gastrointestinal biopsy specimens from one patient with remission phase ulcerative colitis. We observed and evaluated the phenomenon that many eosinophils infiltrate the mucosal epithelium and the mucosal lamina propria. We also evaluated mucosal epithelial reaction and other cases of inflammatory infiltration.

 The result indicated that histological features in EE can be summarized in the following four points : 1)more than 30-40/HPF eosinophils infiltrate the squamous epithelium, 2)eosinophils showed patchy infiltration and degranulation predominantly within the superficial epithelium, 3)epithelium showed edema and desquamated squamous cells, 4)basal cell hyperplasia was also a frequent finding.

 In contrast, although the histological features of EGE are not as clear as those of EE, eosinophilic intraepithelial infiltration might be one of the features of EGE, as it is also of EE. In addition, it could be said that one of the features of EGE, that of eosinophilic infiltration exceeding 20/HPF in the lamina propria predominantly in the deep portion of the mucosa or muscularis mucosae, is accompanied by dense lympho-plasmacytic infiltration.


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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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