Chaddock's sign

例句：

1. 1. The patient exhibited a characteristic sign of the disease.
   患者表现出该疾病的特有症状。
2. 2. The doctor diagnosed the patient with Chaddock's syndrome.
   医生诊断出患者患有查多克氏综合征。
3. 3. Researchers have identified several genetic mutations associated with Chaddock's syndrome.
   研究人员已经确定了几种与查多克氏综合征相关的遗传突变。