论文部分内容阅读
根据２００具干颅骨颅底片的调查，卵圆孔、棘孔及其相邻骨结构除一般大小、形状和轮廓有不同变化外，下列５种变异较为特殊：（１）卵圆孔呈圆形；（２）卵圆孔和棘孔间的骨性变异；（３）蝶导静脉孔变异和双卵圆孔；（４）双棘孔和棘孔缺如；（５）卵圆孔和／或棘孔内后缘缺损。本文阐明了这些变异常与颅中凹原始破裂孔和有关动静脉的胚胎发育异常有关。这些变异的出现率虽不高，但容易误认为病理性改变，应加以鉴别。
According to the investigation of 200 cranial skull base films, the foramen ovale, foramen ovale and their adjacent bony structures have different changes in general size, shape and contour. The following five kinds of variation are rather special: (1) the foramen ovale is round; 2) Osseous variability between foramen ovale and spinous foramen; (3) Variation of dorsal venule foramen and double foramen ovale; (4) Hole trailing edge defect. This paper illustrates that these abnormalities are often associated with primitive craniotomial bursa and related embryonic developmental abnormalities in arteries and veins. The incidence of these mutations is not high, but easily mistaken for pathological changes should be identified.