例1　患者男,35岁。因行走不稳、进行加重10个月入院。10个月前无明显原因双足麻木,行走不稳,自觉踩棉花感,夜间尤甚。既往健康。体检:神清,语利,颅神经(- ) ,双上肢肌力、肌张力正常,双下肢肌力正常,肌张力略高,双肱二、三头肌腱反射正常,双膝、跟腱反射亢进,Babinski征(+) , Example 1 patient male, 35 years old. Due to unstable walking, increased 10 months admitted to hospital. 10 months ago, no obvious reason numbness feet, walking unstable, consciously stamped on the cotton, especially at night. Past health. Physical examination: Shen Qing, language profit, cranial nerves (-), upper limb muscle strength, normal muscle tone, normal muscle strength of both lower extremities, slightly higher muscle tone, normal biceps, tendon reflex, knees, Achilles tendon reflex Hyperthyroidism, Babinski sign (+),