yolk sac tumor of ovary

例句：

1. 1.This patient had a yolk sac tumor in her ovary that required surgery to remove.
   这位患者卵巢中有一个黄体囊肿，需要手术来移除。
2. 2.The diagnosis of this condition is often made during an ultrasound examination of the ovaries.
   这种病症的诊断通常在对卵巢进行超声波检查时发现。
3. 3. The treatment for this condition involves monitoring the patient's progress and potentially removing the yolk sac tumor if necessary.
   治疗这种病症的方法包括监测患者的进展，并在必要时去除黄体囊肿。