Objective:To establish a kind of animal experimental model with typical clinical characteristics of cervical compressive myelopathy and study the changes of MRI and pathology.
目的：建立与临床相近的颈脊髓慢性压迫动物实验模型，观察其MRI和病理改变。
2
Change of pathology of cervical vertebra was excluded.
排除颈椎病理改变。
3
Objective To study the value of clinical pathology in the diagnosis of cervical metastatic carcinoma of unknown primary site.