inferior mesenteric lymph nodes

例句：

1. 1. The doctor performed a biopsy on the inferior mesenteric lymph nodes to investigate the cause ofthe patient's symptoms.
   医生对下级肠系膜淋巴结进行了活检，以调查患者症状的原因。
2. 2. During surgery, the surgeonremoved the inferior mesenteric lymphnodes to remove the tumor.
   在手术中，外科医生切除了下级肠系膜淋巴结以去除肿瘤。
3. 3. The patient's condition improved afterthe removal of the inferior mesenteric lymph nodes.
   患者的病情在切除下级肠系膜淋巴结后有所改善。