Presentation
Child presenting following a motor vehicle accident.
Patient Data
Age: Child
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Note the marked widening of the atlanto-occipital joint, consistent with atlantooccipital disassociation. No fractures identified.
Case Discussion
Atlanto-occipital disassociation is usually seen in children and can be subtle on plain films, especially if one is only looking for fractures or disruption of the normal longitudinal lines.