Results The whole gastric and duodenal mucosa under endoscopy is smooth, while one case had white spots, and three cases had punctate hemorrhage.

• 结果内镜大体观察胃黏膜和十二指肠黏膜基本上完整平滑，1例胃黏膜有弥漫性白斑，3例有小面积的出血；