Magnetic resonance imaging revealed a well-defined, oval mass lesion on the left dorsal aspect of the spinal canal, which compressed the dural sac at the level of C7.
磁共振显示在椎管背侧左边有一个边界清楚，椭圆形的块状病变，在C7平面压迫硬膜囊。
Magnetic resonance imaging revealed a well-defined, oval mass lesion on the left dorsal aspect of the spinal canal, which compressed the dural sac at the level of C7.
磁共振显示在椎管背侧左边有一个边界清楚，椭圆形的块状病变，在C7平面压迫硬膜囊。
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