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【单选题】
女,49岁。颈肩痛5年余,出现四肢麻木、无力半年,行走步态不稳。查体见双手尺侧以下皮肤感觉减退,双下肢肌张力增高,肌力级,X线片见颈椎骨质明显退行性改变,其诊断可能为
A.
颈椎增生
B.
神经根型颈椎病
C.
脊髓型颈椎病
D.
交感神经型颈椎病
E.
椎管内肿瘤
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