Japanese
English
- 有料閲覧
- Abstract 文献概要
- 1ページ目 Look Inside
- 参考文献 Reference
要旨●近年,増加傾向にある食道胃接合部癌の主要な前癌病変として,胃食道逆流症の合併症であるBarrett食道がある.Barrett食道粘膜の発癌ポテンシャルはその長さにより異なり,本邦における多施設共同前向きコホート研究では,3cm以上のBarrett食道(LSBE)の年間発癌率は1.01%と高率であった.一方,本邦の後ろ向きコホート研究の結果ではあるが,USSBE(1cm未満)の年間発癌率は0.0032%と極めて低い.本邦の食道胃接合部癌の多くはSSBE(3cm未満)を背景としているが,その発癌母地の広さを考慮したリスク評価が重要となる.
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.

Copyright © 2026, Igaku-Shoin Ltd. All rights reserved.

