Fig. 12From: Malformed vertebrae: a clinical and imaging reviewButterfly vertebra in two patients: Coronal reformatted image from a non-contrast CT of the spine (a) and coronal T1-weighted MR image of the upper thoracic spine (b) both demonstrate separate ossification centres on each side of the vertebral body (marked by asterisks). Note that there is moulding of the adjacent vertebral bodies towards the midsagittal constriction, especially pronounced on aBack to article page