Endoscopy 2005; 37(7): 660-666
DOI: 10.1055/s-2005-861423
Innovation Forum
© Georg Thieme Verlag KG Stuttgart · New York

Magnifying Endoscopy in Gastritis of the Corpus

K.  Yagi1 , H.  Honda2 , J.  M.  Yang3 , S.  Nakagawa4
  • 1Department of Internal Medicine, Niigata-Prefectural Yoshida Hospital, Niigata, Japan
  • 2Department of Digestive and Cardiovascular Medicine, University of Tokushima School of Medicine, Tokushima, Japan
  • 3Department of Gastroenterology, Zhejiang Provincial People’s Hospital, Hangzhou, China
  • 4Department of Gastroenterology and Division of Endoscopy, Hokkaido University Graduate School of Medicine, Sapporo, Japan
Further Information

Publication History

Publication Date:
11 July 2005 (online)

Endoscopic diagnosis of Helicobacter pylori infection, before biopsies and serological tests are performed, is possible through careful analysis of the network of superficial vessels in patients with gastritis. At standard endoscopy, a regular arrangement of the collecting venules (RAC) is visible as numerous minute red points in the corpus of the noninfected stomach, and is not visible in H. pylori gastritis. Magnifying endoscopy provides more precise information concerning the collecting venules, the network of capillaries surrounding the gastric pits, the swelling of the surface epithelium between pits, and the enlargement and destruction of the pits. The magnified appearance is classified as Z-0 (noninfected stomach) or as Z-1 to Z-3 for successive degrees of mucosal damage in the infected stomach. Histological controls confirm the reliability of the endoscopic classification. Magnifying endoscopy also proves helpful in the assessment of completeness of eradication of H. pylori.

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K. Yagi, M. D.

Department of Internal Medicine, Niigata-Prefectural Yoshida Hospital

Yoshida-mach · Nishikanbara-gun · Niigata-ken, 959-0242 · Japan

Fax: +81-256-922610

Email: yagikazu@pop12.odn.ne.jp