Objective To study operative methods and outcome of dumbbell tumor in the cervical vertebral canal.

目的探讨颈段椎管哑铃形肿瘤的手术方法及其临床疗效。

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In addition, the features of distributions, locations, and forms of neurogenic tumor from intra - vertebral canal were found by MRI.

同时，还通过MRI找出了椎管内神经源性肿瘤的分布、位置、形态特征等。

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