• There is localised, linear ossification present at the posterior margin of the C6 vertebra.

• This has a typical appearance of OPLL (Ossification of the Posterior Longitudinal Ligament).

• The cervical spine is the most common location.

• It is important to follow this up with an MRI of the cord to assess for cord compression and myelopathy.

Ossification present in the midline at the posterior body margin (Pink arrows).