Fig. 5From: Cervical vertebral malformations in 9 dogs: radiological findings, treatment options and outcomesCongenital cervical fusion. a Intervertebral disc extrusion at the level of C5-C6, suspected to occur secondary to C4-C5 congenital cervical fusion in case 8 (adjacent segment disease). b Sagittal CT section of the cervical spine of case 9 showing ankylosis of the articular facets of the axis and C3 with fusion of the vertebral bodies and the dorsal laminaBack to article page