Collagenous Gastritis in a Young Japanese Woman, Report of a Case Yuka Matsumoto 1 , Koichi Kurahara 1 , Yumi Oshiro 2 , Hiroyuki Kobayashi 1,3 , Yoshiaki Aomi 1 , Yuji Sakai 1 , Ken Kominato 1 , Chiaki Koga 1 , Mao Funata 1 , Koichi Abe 1 , Keisuke Kawasaki 1 , Kensei Otsu 1 , Tadahiko Fuchigami 1 , Makoto Yano 4 1Division of Gastroenterology, Matsuyama Red-Cross Hospital, Matsuyama, Japan 2Department of Pathology, Matsuyama Red-Cross Hospital, Matsuyama, Japan 3Division of Gastroenterology, Fukuoka Sanno Hospital, Fukuoka, Japan 4Yano Clinic, Matsuyama, Japan Keyword: collagenous gastritis , collagen band , collagenous colitis , 胃X線造影 , 拡大内視鏡 pp.1389-1396
Published Date 2011/8/25
DOI https://doi.org/10.11477/mf.1403102338
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 We reported the case of a young Japanese woman with collagenous gastritis. A 23-year-old female was refered to our institution with a complaint of epigastric pain. Endoscopic examination disclosed a depressed area without erosion in the gastric body. High-resolution magnification endoscopy with narrow-band imaging demonstrated loss of normal subepithelial capillary network and round pits, with irregular arrangement of collecting venules, whose findings corresponded to those of gastric atrophy, in the depression. Biopsy specimens revealed a thickened eosinophilic band-like structure, which was positive on Azan staining but negative on amyloid staining, beneath the surface epithelium. It was accompanied by infiltration of inflammatory cells in the lamina propria. Little is known about the natural history and pathogenesis and further case studies are warranted to clarify the nature of this rare entity.

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