The nervous system, however, revealed definite abnormal physical signs. There was definite loss of vibration sense Below the pelvis and also loss of position sense in the toes. Arm and cranial nerves were normal.

• 不过神经系统却表现有明显的异常体征;在骨盆以下明显的丧失了振动感;足趾也没有位觉。上肢和颅神经正常。