Diffuse posterior hyperostosis of the cervical spine with cord compression: a Forestier (DISH) variant.

A patient presented with signs and symptoms of cervical spinal cord compression. Computed tomography (CT) scan showed diffuse idiopathic hyperostosis of the posterior vertebral border of C4, C5, C6, and C7 cervical vertebrae, with severe spinal stenosis at C5 and C6 level. Computed tomography scan is the single most useful instrument for demonstrating the extent of bony proliferation and severity of spinal stenosis.