Above lateral cervical radiograph and the T2, T1 weighted MR images show thickening and ossification of the Posterior Longitudinal Ligament (OPLL) posterior to C2 and C3 vertebral bodies. The PLL ossification would be seen as hypointense signal intense thickening of the PLL in both T1 and T2 images. Narrowing of the spinal canal with compression of the thecal sac and the cord is present at C2/C3 levels.
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