“脑底异常血管网症”或“脑底动脉环闭塞症”。由于颈内动脉先天性发育不全和血管的慢性炎症引起的一种脑血管病变，主要症状有脑缺血或脑出血或蛛网膜下腔出血moyamoya disease

• 他患的是非常少见的脑血管病——“烟雾病”。

  He suffers from a very rare condition which affects blood vessels in the brain, known as moyamoya disease.

• 该中心的特色诊疗项目是烟雾病的外科治疗。

  This centre's speciality is diagnosis and surgery for treating moyamoya disease.