1. He has been operated on for his duodenal ulcer. 
   他已因十二指肠溃疡而作了手术。
2. A bacterium is identified as the cause for his duodenal ulcer. 
   一种细菌被断定为造成他十二指肠溃疡的根源。
3. She will have to be operated on for her tumours [duodenal ulcer]. 
   她的肿瘤[十二指肠溃疡]得开刀。
4. A positive diagnosis can be made only after ruling out gastric and duodenal ulcer. 
   只有排除了胃溃疡和十二指肠溃疡的可能性之后，才能作出明确诊断。
5. More than 70 percent of duodenal and stomach ulcers are caused by a bacterium called helicobacter pylori. 
   有70%以上的十二指肠溃疡和胃溃疡是由幽门螺杆菌引起的。

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• 1. 十二指肠压迹
  十二指肠悬肌||suspensory muscle of duodenum...十二指肠压迹||duodenal impression...十二指肠支||duodenal branches; duodenal branches
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