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.
14例MR矢状位像均显示斜坡向颅内陷入,3例见齿状突后移,1例并寰枕融
,14例均清晰地显示了延颈髓的
态及与小
扁桃体的
系。