骑跨于硬脊膜内外或椎管内外的肿瘤统称为椎管内哑铃形肿瘤’“。此类肿瘤在临床上并不少见，以良性居多，手术效果满意。国外文献报道约占椎管内肿瘤的5．7％～14．2％，国内邓传宗、刘道坤报道为8．9％‘’‘。我院自1980年至1995年6月共收治13例，占所有椎管内肿瘤的5．4％ Ride across the spinal dura mater inside and outside or inside and outside the tumor are collectively referred to as spinal dumbbell tumors. "Such tumors are not uncommon in clinical practice, mostly benign, satisfactory surgical results. Abroad literature accounts for about spinal Tumor of 5.7% ~ 14.2%, the domestic Deng Chuanzong, Liu Dao-kun was reported as 8.9% ’’ in our hospital from 1980 to June 1995 were treated in 13 cases, accounting for 5 of all spinal canal tumors. 4%