cyst of kidney

例句：

1. 1. He had a cyst removed from his ear.
   他从耳朵里取出了一个囊肿。
2. 2. The cyst was causing him significant pain and discomfort.
   这个囊肿给他带来了严重的疼痛和不适。
3. 3. Cysts are common in the digestive system.
   囊肿在消化系统中很常见。