duodenectomy

例句：

1. 1. The patient underwent duodenectomy to treat his gastric cancer.
   患者接受了十二指肠切除术来治疗他的胃癌。
2. 2. The surgeon performed a duodenectomy to remove the tumor from the patient's stomach.
   外科医生进行了一次十二指肠切除术，将肿瘤从病人的胃中移除。
3. 3. The procedure is complex and requires careful planning and execution for optimal results.
   这个程序很复杂，需要仔细规划和执行才能获得最佳结果。