Computed tomography of spinal cord necrosis from multiple sclerosis.

Received January 25. 1983; accepted after revision August 3. 1983. On admission , CT of the cervical spine after intravenous administration of contrast material demonstrated an area of increased density in the center and to the right of the center of the cervical spinal canal that was believed to be pathologic (fig . 1 A). Reformatted coronal and sagittal images showed that the lesion extended from C2 to the C4C5 level (figs. 18 and 1 C). Repeat CT without contrast material 2 weeks later demonstrated no abnormalities (fig. 2A). A CT scan at the same time after intravenous contrast administration showed marked decrease in the extent and intensity of contrast enhancement , with the enhancement now located to the left of the center of the spinal canal and limited to the C3-C4 disk space level (figs. 28-20). Four weeks after hospital admission , the patient was transferred to the University of Michigan Hospitals, where cervical myelography and CT were done after the lumbar introduction of metrizamide. The myelogram showed cervical spondylosis and a prominent but not