From the case: CPPD of the cervical spine
CT Cervical spine
Coronal bone window
CT cervical spine coronal view Erosive changes at the apophyseal joints of C1-C2 with subluxation of the atlanto-axial joint, disc narrowing and erosive changes at the C2-3 level, extensive disc space narrowing at all levels. Narrowing and erosive changes at the facet joints. Calcified mass behind the dens.