Resluts All the 14 cases showed clivus projecting intracranial.posterior displacement of Odontoid Process were found in 3 cases,with 1 case of Atlanto-occipita fusion malformation.
结:14
MR
状位像
显示斜坡向颅内陷入,3
见齿状突后移,1
合并寰枕融合畸形,14
晰地显示了延颈髓的形态及与小脑扁桃体的关系。