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目的探讨烟雾病的临床表现与病因、病理、影像学特点的相关性。方法对２０例经磁共振血管造影（ＭＲＡ）或脑血管造影证实的烟雾病，从其临床表现、病理改变、影像学特点及诊断价值进行对比分析。结果２０例中有１５例（＜１５岁）表现为缺血性脑血管病变，其中５例考虑为钩端螺旋体性脑动脉炎所致。５例（＞１６岁）表现为脑出血。结论烟雾病在儿童、青少年以缺血性脑血管病变为主，成人以脑出血为主要表现。绝大多数烟雾病能通过ＭＲＡ诊断
Objective To explore the correlation between the clinical manifestations of moyamoya disease and its etiology, pathology and imaging features. Methods Twenty patients with moyamoya disease confirmed by magnetic resonance angiography (MRA) or cerebral angiography were analyzed from the clinical manifestations, pathological changes, imaging features and diagnostic value. Results Of the 20 cases, 15 (<15 years) showed ischemic cerebrovascular disease, of which 5 were considered due to leptospirosis. Five patients (> 16 years old) showed cerebral hemorrhage. Conclusion Moyamoya disease is predominantly ischemic cerebrovascular disease in children and adolescents, and cerebral hemorrhage is the major manifestation in adults. Most moyamoya disease can be diagnosed by MRA