Abstract: This paper reports a case of Ancylostoma duodenale parasitized in the hepatic flexure of colon and the case was misdiagnosed at the beginning. The causes of misdiagnosis are analyzed and the laboratory examination methods of hookworm are summarized.

Key words: Hookworm disease；Direct smear method, Brine flotation；Colonoscopy

摘要： 本文报道了1例寄生于结肠肝曲的十二指肠钩虫初期被误诊的情况，总结了钩虫的实验室检查方法，并分析了误诊原因。

关键词: 钩虫病；直接涂片法；饱和盐水浮聚法；肠镜检查