thymus transplantation

例句：

1. 1.The patient underwent a thymus transplant to treat his severe allergies.
   这名患者接受了胸腺移植来治疗他的严重过敏症。
2. 2.The thymus transplant was successful, and the patient is now symptom-free.
   胸腺移植成功了，患者现在没有症状了。
3. 3.The procedure involves removing the patient's own thymus tissue and replacing it with a donor's tissue for the transplantation.
   该程序涉及取出患者的自身胸腺组织并用供体的组织进行移植。