pararectal lymph nodes

例句：

1. 1.The patient's condition was stable, but the pararectal lymph nodes were enlarged.
   患者的病情稳定，但腹膜后淋巴结肿大。
2. 2.During surgery, the surgeon carefully removed the pararectal lymph nodes to prevent infection.
   手术中，外科医生小心地移除了腹膜后淋巴结以防止感染。
3. 3.After the operation, the patient's condition improved significantly, and the pararectal lymph nodes returned to normal size.
   手术后，患者的病情显著改善，腹膜后淋巴结恢复到正常大小。