mediastinoscopy

例句：

1. 1. The patient underwent a mediastinoscopy to investigate the cause of his chest pain.
   患者接受了中隔镜检查以探究胸痛的原因。
2. 2. The surgeon performed a mediastinoscopy to remove the tumor from the patient's lung.
   外科医生进行了中隔镜检查，从患者的肺部取出了肿瘤。
3. 3. During the procedure, the doctor used a mediastinoscopy to access the affected area for treatment.
   在手术过程中，医生使用中隔镜检查来进入受影响区域进行治疗。