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早期胃癌内镜下精准诊断

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摘要 早期胃癌( early gastric cancer ,EGC)是指局限于黏膜及黏膜下层的胃癌,无论有无淋巴结转移. 根据其大体形态,可分为隆起型(0~Ⅰ型),浅表型(0~Ⅱ型),凹陷型(0~Ⅲ型),0~Ⅱ型可进一步细分为0~Ⅱa,0~Ⅱb,0~Ⅱc型,其他也可根据形态的差异分为不同的混合类型[1]. 临床上,早期胃癌的诊断存在困难,尤其Ⅱ型,在临床上极易造成漏诊[2]. 目前我国早期胃癌的诊断率不足10%,近年来逐渐有上升,但仍远远低于日本70%的检出率[ 3 ]. 我国胃癌患者大部分被发现时已为进展期,五年生存率不足30%,而早期胃癌则多数可采取内镜下治疗,五年生存率大于90%[4]. 因此,胃癌的早期诊断对于提高患者的生存率和生活质量极具价值.
出处 《医学新知》 CAS 2018年第2期117-119,共3页 New Medicine
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