mucocele of lacrimal sac

例句：

1. 1. The patient had a mucocele in his sinuses that required surgery.
   这位病人的鼻腔里有囊肿，需要手术。
2. 2. The doctor advised the patient to seek medical attention immediately for the mucocele.
   医生建议患者立即就医治疗囊肿。
3. 3.After the operation, the patient recovered well and was discharged from the hospital with a recommendation to follow up with his doctor.
   手术后，患者恢复良好，出院时医生建议他定期复查。