Materials and Methods: Under the high-resolution CT-guidance, The cystic fluid was aspirated and fibrin glue (FG) therapy were performed in all the 9 patients with sacral nerve root cysts.

• 材料与方法：对9例骶神经根囊肿患者，在高分辨力CT引导下定位，行腰穿针经骶孔刺入神经根囊肿内，抽尽囊肿内液体。