title: Anomalies of the craniovertebral border.
abstract: Pertinent embryology is reviewed as a background for understanding anomalies of the craniovertebral border. These anomalies constitute a variable spectrum due either to incomplete assimilation or abnormal fusion.
mesh_terms: D000818:Animals; D001269:Atlanto-Occipital Joint / Q000002:abnormalities; D002574:Cervical Vertebrae / Q000002:abnormalities*; D005539:Foramen Magnum / Q000002:abnormalities; D006801:Humans; D008335:Mandibular Condyle / Q000002:abnormalities; D009777:Occipital Bone / Q000002:abnormalities; D012886:Skull / Q000002:abnormalities*; D013580:Synostosis / Q000196:embryology