diverticulum of ureter

例句：

1. 1.The doctor found a small diverticulum in his colon that needed to be removed.
   医生在他的结肠里发现了一个小突起，需要切除。
2. 2. The patient had a small diverticulum on her liver that was causing some discomfort.
   病人的肝脏上有一个小型瘤子，引起了一些不适。
3. 3.The pathologist examined the tissue and found a small diverticulum that could have been missed during the initial examination.
   病理学家检查了组织样本，发现一个可能在初步检查中被遗漏的小瘤子。