囊肿

例句：

1. 1. The lump was a cyst under the armpit.
   那个肿块是一个腋下的囊。
2. 2. The doctor removed the cyst and sent it for testing.
   医生取出了囊并送去测试。
3. 3. The swelling in her neck was an abscess.
   她脖子上的肿胀是一个脓肿。