sessile hydatid

例句：

1. 1. The patient's condition was diagnosed as a sessile hydrocele.
   患者的病情被诊断为一个节肢动物的囊肿。
2. 2. The veterinarian performed an exploratory surgery to remove the sessile hydrocele.
   兽医进行了一次探查手术，以移除节肢动物的囊肿。
3. 3. The sessile hydrocele had been causing discomfort for several weeks.
   这个节肢动物的囊肿已经导致不适感几周了。