电镜结果 显示，低龄组患者空肠上皮细胞微绒毛排列整齐、致密，长短一致；
Results The height of the jejunal villus was longer in young age group than that of old age group.
多斑艾美球虫主要寄生于空肠、回肠、盲肠和直肠绒毛中部到顶部的上皮细胞中，引起轻微病变。
E. stigmosa parasitized mainly in the epithelial cells of jejunum, ileum, ceca, and rectum from middles to tops of villi, and resulted in mild histopathological changes.
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