title: Familial spondylolisthesis of the axis vertebra.
abstract: This report describes a nine-year-old girl with a spondylolisthesis of the C2 vertebra allowing 14 mm of slip. Her father had very similar vertebral anomalies.
mesh_terms: D001368:Axis, Cervical Vertebra / Q000000981:diagnostic imaging; D002648:Child; D005260:Female; D006801:Humans; D011859:Radiography; D016136:Spina Bifida Occulta / Q000000981:diagnostic imaging / Q000235:genetics; D013168:Spondylolisthesis / Q000000981:diagnostic imaging / Q000235:genetics*; D013169:Spondylolysis / Q000000981:diagnostic imaging / Q000235:genetics