Atlanto-axial segmentation defects and os odontoideum in two male siblings with opsismodysplasia.

Al Kaissi, Ali; Chehida, Farid Ben; Ghachem, Maher Ben; Grill, Franz; Klaushofer, Klaus · Skeletal Radiol · 2009

case_report · Level V

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Abstract

We report two siblings aged 11 and 7 years, respectively, who presented with the clinical and radiographic features of opsismodysplasia (non-lethal type). 3D computed tomography scans of the craniocervical region revealed a split atlas and os odontoideum in both siblings. To the best of our knowledge, this is the first clinical report detailing craniocervical malformations in two siblings with opsismodysplasia.

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