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胃上皮化生是十二指肠球部溃疡时，溃疡旁粘膜的一种常见病理改变。一些学者认为十二指肠粘膜胃上皮化生的发生可能是由于胃酸和胃蛋白酶的侵蚀引起的一种适应性变化，它与十二指肠球部溃疡的发生有着密切的关系［１］。本文通过对十二指肠球部溃疡活动期、疤痕期及十二指肠球
Gastric metaplasia is a common pathological change in mucosa adjacent to the ulcer when it is associated with duodenal ulcer. Some scholars believe that duodenal mucosal gastric metaplasia may occur due to gastric acid and pepsin erosion caused by a kind of adaptive changes, it has a close relationship with the occurrence of duodenal ulcer [1]. This article through duodenal ulcer activity, scarring and duodenal bulb