It is difficult to diagnose a main lesion of cervical spondylosis in consideration of neurological findings when there are several abnormal findings in cervical myelography. We could diagnose 12 cervical disc herniations correctly by CT myelography after cervical myelography and treated them by anterior spinal decompression and fusion. They recovered remarkably. Therefore, we reported 12 cases of cervical disc herniations and utility of CT myelography.
