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Barrett食管癌变发病机理相关研究进展

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摘要 Barrett食管是指食管下段鳞状上皮被柱状上皮所取代的一种病理现象。内镜下表现为食管下段红色的柱状上皮,伴有或无消化性溃疡或狭窄。正确区分胃食管连接线(GEJ)、鳞一柱状上皮交接线(SCJ),对内镜下识别Barrett食管非常重要。正常情况下胃食管连接线(GEJ)与鳞一柱状上皮交接线(SCJ或Z线)位于同一位置,发生Barrett食管时,SCJ(Z线)上移与GEJ分离,此时在Z线下方与GEJ间活检取材可检出化生的柱状上皮,而Z线上方取材为鳞状上皮。
作者 郭军 房殿春
出处 《中国消化内镜》 2008年第12期49-52,共4页 Digestive Disease and Endoscopy
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参考文献10

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