title: Atlanto-axial segmentation defects and os odontoideum in two male siblings with opsismodysplasia.
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.
authors.affiliation: Ludwig Boltzmann Institute of Osteology at the Hanusch Hospital of WGKK and AUVA Trauma Centre Meidling, 4th Medical Department, Hanusch Hospital, Heinrich Collins Str., 30, 1140 Vienna, Austria. ali.alkaissi@osteologie.at
authors.forename: Ali
authors.initials: A
authors.lastname: Al Kaissi
authors.forename: Farid Ben
authors.initials: FB
authors.lastname: Chehida
authors.forename: Maher Ben
authors.initials: MB
authors.lastname: Ghachem
authors.forename: Franz
authors.initials: F
authors.lastname: Grill
authors.forename: Klaus
authors.initials: K
authors.lastname: Klaushofer
mesh_terms: D000015:Abnormalities, Multiple / Q000000981:diagnostic imaging*; D001268:Atlanto-Axial Joint / Q000002:abnormalities* / Q000000981:diagnostic imaging; D002648:Child; D002675:Child, Preschool; D003241:Consanguinity; D006801:Humans; D008297:Male; D009809:Odontoid Process / Q000002:abnormalities* / Q000000981:diagnostic imaging; D010009:Osteochondrodysplasias / Q000000981:diagnostic imaging*; D035781:Siblings; D014057:Tomography, X-Ray Computed