perimastitis

例句：

1. 1. The patient developed a periarthritis due to prolonged immobilization.
   由于长时间固定不动，患者患上了周围炎。
2. 2. The doctor prescribed antibiotics for the periarthritis.
   医生为周围炎开了抗生素。
3. 3. The patient was advised to rest and avoid activities that could worsen the periarthritis.
   医生建议患者休息，避免可能导致周围炎恶化的活动。