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  • Title: Congenital odontoid aplasia and posterior circulation stroke in childhood.
    Author: Phillips PC, Lorentsen KJ, Shropshire LC, Ahn HS.
    Journal: Ann Neurol; 1988 Apr; 23(4):410-3. PubMed ID: 3382179.
    Abstract:
    Head trauma and vigorous physical activity were followed by delayed-onset posterior circulation stroke in a 5-year-old boy with odontoid aplasia and C1-C2 subluxation. Angiography demonstrated vertebral artery narrowing and occlusion of the left anterior-inferior cerebellar and posterior cerebral arteries. Odontoid aplasia and other atlantoaxial dislocations are treatable causes of posterior circulation insufficiency in childhood; these defects may be overlooked without appropriate radiographic study of the cervical spine using flexion-extension views.
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