Abstract: Fibromuscular dysplasia is a noninflammatory, nonatherosclerotic, segmental,multifocal disease of the arteries, mainly involving the medium-sized arteries. Being animportant risk factor of stroke in youth, it may lead to arterial stenosis, occlusion, aneurysm or dissection. The origin of the disease is still unknown. The diagnosis relies on angiography, by which characteristic "string-of-beads" pattern may be found. Serious cases may be treated withsurgical or interventional therapy.

Key words: Fibromuscular dysplasia; Cerebrovascular disease

摘要： 纤维肌发育不良是一种非炎症性、非动脉硬化性、节段性、多灶性动脉血管病。主要累及全身中等大小的动脉，可导致动脉的狭窄、闭塞、动脉瘤或夹层，是青年人卒中的重要原因。病因尚未明确。诊断主要依靠动脉造影，可以发现特征性串珠样改变。严重患者可手术治疗或介入治疗。

关键词: 纤维肌发育不良; 脑血管病