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Recent Trend of Clinical and Pathological Characteristics of Pure Signet-ring Cell Carcinoma of the Stomach Daisuke Yoshimura 1 , Keita Fukaura 1 , Shinya Umekita 1 , Akito Okubo 1 , Soshi Imamura 1 , Shungo Shimizu 1 , Ai Ogasawara 1 , Kazuaki Fujisawa 2 , Kazuhiko Nakamura 3 , Masaaki Namoto 4 , Rie Yoshimura 5 , Shohei Hamada 6 , Taisuke Sasaki 7 , Aya Fujita 8 , Minako Fujiwara 8 , Seiya Momosaki 8 1Division of Gastroenterology, NHO Kyushu Medical Center 2Fujisawa Medical Clinilc 3Nishijin Nakamura Medical Clinic 4Namoto Medical Gastrointesinal Clinic 5Hakuaikai Medical Checkup Center Wellness 6Hakata Station Hamada Clinic 7Sasaki Medical and Gastrointestinal Clinic 8Division of Pathological Diagnosis, NHO Kyushu Medical Center Keyword: 印環細胞癌 , Helicobacter pylori , H. pylori , 若年者胃癌 , 対策型検診 , image enhanced endoscopy pp.35-45
Published Date 2026/1/25
DOI https://doi.org/10.11477/mf.053621800610010035
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 Signet-ring cell carcinoma has traditionally been described as occurring mainly on the proximal side of the atrophic border associated with chronic active gastritis induced by Helicobacter pylori(Hp). However, recent studies have increasingly reported white, flat, Hp-uninfected gastric signet-ring cell carcinomas. In our review of 30 consecutive cases diagnosed at our institution over the past four years, the male-to-female ratio was nearly equal, and 12 cases were Hp-positive, indicating that the prevalence remains substantial. Moreover, 12 cases(including six Hp-positive)were found in patients younger than 50 years, underscoring a possible gap in the current endoscopic screening system in Japan. Endoscopic observation showed that attention to areas near the atrophic margin and to glandular junctions between pyloric and fundic glands, together with sufficient air insufflation and detailed assessment of color variation under white light and Supplementary IEE, facilitated more reliable diagnosis.


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

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