本文报告3例经纤维胃镜检查始作出诊断的十二指肠钩虫病例,且就其作为诊断依据的形态特征和寄生特性加以描述. 例1 女性,35岁.主诉:上腹隐痛数月。胃镜所见:十二指肠球部见1条红色线样虫体,其口囊叮咬在十二指肠肠粘膜上,即以普通的胃镜活检钳将虫体取出。经鉴定为雌性十二指肠钩虫。 This article reports 3 cases of endoscopic diagnosis of duodenal hookworm cases of gastroscopy, and its diagnosis as a basis for morphological characteristics and parasitic characteristics to be described in Example 1 female, 35 years old. Chief complaint: upper abdominal pain for several months. Gastroscopy seen: duodenal see a red thread-like body, the bite of the mouth in the duodenum intestinal mucosa, that ordinary worm biopsy forceps will be removed. Identified as female duodenal hookworm.