小肠粘膜活组织检查已有30余年历史。它是将特制活检管经口送入小肠,采取其粘膜组织,进行病理检查的一项技术。随着纤维小肠镜的问世,已能在直视下有针对性地钳取肠粘膜作活组织检查,弥补了前者盲目取材之不足。但小肠镜检本身的操作困难,技术要求高,病人所受痛苦亦大,故至今未能在临床普遍应用。此外,应用纤维结肠镜有时亦能进入回肠远 Small intestinal mucosal biopsy has more than 30 years of history. It is a special biopsy tube into the small intestine, to take its mucosal tissue, a technique for pathological examination. With the advent of the fiber enteroscopy, has been targeted under the eyes of the intestinal mucosa clamp for biopsy, to make up for the blind lack of the former drawn. However, the operation of the small bowel examination itself is difficult, high technical requirements, the patient suffering is also large, so far failed to be widely used in clinical practice. In addition, the application of colonoscopy sometimes enter the ileum far