Figure 4

Sagittal T2-weighted cervical spine MRI

There is a focal kyphosis at C5/6 and associated disc bulge causing severe canal stenosis (diameter of 7 millimeters) and mild spinal cord flattening (arrowhead). Congenital failure of segmentation is re-demonstrated with occipitalization, fusion of C2/3, and fusion of C6/7/T1 (not indicated)

MRI: magnetic resonance imaging