Cervical MRI, coronal plane, T2-weighted image. Cervical MRI showed no signs of fracture. Complete atlanto-occipital assimilation is observed. There is a left C3 hemivertebra (upper asterisk), not segmented, associated with partial fusion in the right lateral portion of C2 and C4. There is a C5-C6 block vertebra (white arrows). The intervertebral disc between these two vertebrae is degenerated (arrowheads) and partially absent, and there is an incomplete bone fusion. There is another hemivertebra, presumably T1 (lower asterisk).