Objective To investigate ct characteristics of lumbar disc herniation with outside vertebral canal type.

目的探讨椎管外型腰椎间盘突出的CT表现特征。

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The central type was most common seen (71.43%), which often accompanied with narrowing of vertebral canal and lateral recess.

常见突出类型为中央型(71.43%)，多伴有先天发育性椎管和侧隐窝狭窄。

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The central type was most common seen (71.43%), which often accompanied with narrowing of vertebral canal and lateral recess.

常见突出类型为中央型(71.43%)，多伴有先天发育性椎管和侧隐窝狭窄。

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