cystosorus

例句：

1. 1.The patient had a cyst in his kidney.
   患者肾脏里有囊肿。
2. 2.The doctor found a cyst in the patient's liver.
   医生在患者的肝脏里发现了一个囊肿。
3. 3. Cysts are often caused by infections or inflammation.
   囊肿通常是由于感染或炎症引起的。