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Carcinogenic Potential of the Esophagogastric Junction Mucosa Tomoyuki Koike 1 , Masahiro Saito 1 , Shota Shimizu 1 , Kaoru Koizumi 1 , Yutaka Hatayama 1 , Takeshi Kanno 1 , Waku Hatta 1 , Kaname Uno 1 , Akira Imatani 1 , Atsushi Masamune 1 1Division of Gastroenterology, Tohoku University Graduate School of Medicine Keyword: 食道胃接合部 , 発癌ポテンシャル , LSBE , SSBE , USSBE pp.261-267
Published Date 2026/3/25
DOI https://doi.org/10.11477/mf.053621800610030261
  • Abstract
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 Barrett's esophagus(BE), a gastroesophageal reflux disease complication, is a major precancerous lesion for esophagogastric junction(EGJ)adenocarcinoma ; its prevalence has been recently increasing. The carcinogenic potential of the BE mucosa significantly varies depending on its length. A multicenter prospective cohort study in Japan reported that the annual incidence of carcinogenesis in long-segment BE(≥3cm)was as high as 1.01%. Conversely, a retrospective cohort study in Japan revealed that the annual incidence in ultrashort-segment BE(<1cm)was extremely low at 0.0032%. Although most cases of EGJ carcinoma in Japan are associated with short-segment BE, risk assessment for cancer development of these background mucosal segments remains essential.


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

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