Most of the literatures on the disease are case reports. Clinical study and summer is limited, which addresses the feature, diagnosis and treatment of SEAC. 现有文献绝大多为个案报道,缺乏对该病的临床特点和诊治方法的临床分析和总结。
Background and objective: Spinal extradural arachnoid cyst ( SEAC) is a rare disease that that accounts for approximately 1 to 3% of all primary spinal space-occupying lesions. 背景和目的:硬脊膜外蛛网膜囊肿是一种椎管内的罕见疾病,仅占脊髓原发占位性疾病的1%-3%。