内镜检查是很重要的一个排除消化性溃疡狭窄或癌症的存在，与胃十二指肠病理学。

Endoscopy is important to rule out the presence of a peptic stricture or cancer, and gastroduodenal pathology.

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方法术中结扎犬胰十二指肠前、后动脉、胰尾动脉。观察缺血后动物的生存状况及胰腺、十二指肠病理改变。

Mothods Ligated the anterior, posterior and rear pancreaticoduodenal artery, observed the state of animals survival and the pathology change of dog's pancreas and duodenum after ischemic operation.

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目的探讨十二指肠肿瘤患者的内镜与病理特点以及临床诊断线索。

Objective: To investigate the features of endoscope and pathology of patients with duodenal neoplasms and clue of clinical diagnosis.

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