囊肿, 包囊
a sac-like pocket of membranous tissue that contains fluid, air, or other substances, and can grow almost anywhere in your body or under your skin
:
• The doctor drained the cyst on her wrist.
医生引流了她手腕上的囊肿。
• She had a small cyst removed from her eyelid.
她眼睑上的一个小囊肿被切除了。