1、病变节段以下同侧上运动神经元瘫痪，深感觉障碍，精细触觉障碍，对侧痛温觉障碍

2、损伤平面以下弛缓性瘫，肌张力低，腱反射减弱或消失，无病理征。一般持续2~4周。后期则出现肌张力增高、腱反射亢进、病理征（+）、 反射性排尿。

3、早期症状、神经根痛、感觉障碍、痛温觉障碍、脊髓半切综合征、节段性肌无力和萎缩、锥体束征、括约肌功能障碍、椎管阻塞、脑脊液蛋白增高、脊柱X线平片改变、脊髓造影充盈缺损、MRI

1. Paralysis of the upper motor neuron on the same side below the diseased segment, deep sensory disturbance, fine touch disturbance, and contralateral pain and temperature disturbance

2. Flaccid paralysis below the injury level, low muscle tension, weakened or disappeared tendon reflexes, and no pathological signs. It usually lasts 2 to 4 weeks. In the later stage, increased muscle tone, tendon hyperreflexia, pathological signs (+), and reflex urination appear.

3. Early symptoms, nerve root pain, sensory disturbances, pain and temperature perception, hemisection of the spinal cord syndrome, segmental muscle weakness and atrophy, pyramidal tract signs, sphincter dysfunction, spinal canal obstruction, increased cerebrospinal fluid protein, spinal X-ray Plain film changes, myelography filling defect, MRI