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食管胃结合部腺癌临床病理特点

中国实用外科杂志2012年4月第32卷第4期

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(2011-12-14收稿)

基金项目:北京市科技新星计划项目(2009BG-02)

作者单位:北京大学肿瘤医院暨北京市肿瘤防治研究所病理科恶性肿瘤发病机制及转化研究教育部重点实验室,北京100142

通讯作者:孙宇,E-mail:sunyu_bch@https://www.wendangku.net/doc/c712815018.html,

文章编号:1005-2208(2012)04-0270-03

食管胃结合部腺癌临床病理特点

宇,李吉友

【摘要】胃癌和食管癌是全球癌症相关死亡的主要原因之一。在发达国家,胃癌的发病率降低,与之相反,食管胃结

合部腺癌(AEG )的发病率迅速上升。已有的文献表明AEG 的病因、诊断标准及临床病理特征存在许多差异。许多AEG 的组织发生与Barrett 食管密切相关,发病经过从肠上皮化生→低级别异型增生→高级别异型增生→腺癌几个阶段。

【关键词】食管胃结合部腺癌;诊断标准;临床病理特征中图分类号:R6文献标志码:A

Clinicopathological features of adenocarcinoma of the esophagogastric

junction

SUN

Yu,

LI

Ji-you.

Department of Pathology,Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education),Peking University Cancer Hospital &Institute,Beijing100142,China Corresponding author:SUN Yu,E-mail:sunyu_bch@https://www.wendangku.net/doc/c712815018.html, Abstract

Gastric and esophageal cancers are among the

leading causes of cancer-related death worldwidely.By contrast with the decreasing prevalence of gastric cancer,incidence

and

prevalence

of

adenocarcinoma

of

the

esophagogastric junction (AEG)are rising rapidly in developed countries.Many discrepancies exist in the published work about the causes,diagnostic criteria and clinicopathological features of AEG.Histogenesis of most AEG is related with Barrett ’s esophagus.The pathogenic process includes intestinal metaplasia,low grade dysplasia,high grade dysplasia and adenocarcinoma.Keywords

adenocarcinoma of the esophagogastric junction ;

diagnostic criteria ;clinicopathological features

发生于食管下段及胃贲门部的腺癌,有一部分病例跨越食管胃结合部(esophagogastric junction,EGJ ),难以准确确定原发于食管下段还是胃贲门,WHO 将其归类为食管胃结合部腺癌(adenocarcinoma of the esophagogastric junction,AEG )。近年来,其发病率有上升趋势,在西方国家尤为显著。本文就AEG 的概念、诊断标准及临床病理特点做一简要介绍。

1EGJ 的定义

从概念上来说,EGJ 是食管终点与胃起始点连接处的一条线,但这条线是虚拟的。在实际工作中,并没有广泛接受、可重复性的明确标志用以“精确”确定EGJ。解剖学、影像学、内科、外科及内镜等不同学科使用的标准不尽相同[1]。实际上,精确确定EGJ 的位置,对于AEG 的治疗及研究并没有重要影响。很多学者将近端胃黏膜皱襞始端与食管末端交界区域作为EGJ 区域,尽管也有缺点,但较为合理,被多数人接受。2AEG 的诊断标准

根据上述EGJ 的定义,AEG 的诊断标准如下:(1)跨越

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