sequestration cyst

例句：

1. 1. The patient's condition worsened after the surgery.
   手术后，患者的病情恶化了。
2. 2.The diagnosis of this disease is often made by a biopsy.
   这种疾病的诊断通常通过活检来确定。
3. 3. The sequestration cyst was removed surgically to relieve the patient's symptoms.
   为了缓解患者的症状，这个隔室囊肿被外科手术切除。