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Barrett食管及早期食管腺癌内镜治疗的发展

Chinese Journal of Clinical Gastroenterology(2014)

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Abstract
Barrett食管(Barrett's Esophagus,BE)是指食管下段复层鳞状上皮被单层柱状上皮所替代的一种病理现象,可伴肠化或无肠化,伴有特殊肠上皮化生者是属于食管腺癌的癌前病变[1].有研究发现,约80.0%的食管腺癌来源于BE[2],其中伴有高度不典型增生的BE (HGD-BE)发展为食管腺癌的风险性更高,一项荟萃分析[3]报道每年约有6.0%的HGD-BE患者发展为食管腺癌,且HGD-BE患者未来5年内发生食管腺癌的危险性可高达30.0%~50.0%.
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