acute simple appendicitis

例句：

1. 1. He was diagnosed with acute simple appendicitis and needed to be operated on immediately.
   他被诊断出患有急性单纯性阑尾炎，需要立即手术。
2. 2. The patient's condition worsened quickly after the operation, indicating that the surgery was successful.
   患者在手术后病情迅速恶化，表明手术成功。
3. 3.Acute simple appendicitis is a common cause of abdominal pain in children, often requiring immediate medical attention.
   急性单纯性阑尾炎是儿童腹部疼痛的常见原因，通常需要立即医疗关注。