perithelioma

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 pathologist performed a biopsy to determine the type of perithelioma.
   病理学家进行了一次活组织检查，以确定肿瘤的类型。
3. 3. The patient was diagnosed with a perithelioma and underwent aggressive treatment.
   患者被诊断出患有外膜瘤，并接受了积极的治疗。