duodenal ulcer

名词 duodenal ulcer:

1. a peptic ulcer of the duodenum

1. 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。
2. 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。