[Cervicodorsal diastematomyelia in an adult].

A 44-year-old male had paraparesis which had began at age 20 years; a cleft spinal cord (diastematomyelia) was discovered at cervicodorsal level. The patient had nevus and hypertrichosis in the skin overlying the dysraphic spinal cord malformation. Both computer-assisted myelography and magnetic resonance scan showed the spinal cord segmentation and other associated disorders: bone spicula projecting between the 2 cordal halves, vertebral fusion defect and syringomyelic cavity. We emphasize the rarity of this abnormality in a so high spinal cord level and the onset of symptoms at adult age.