Nakahara Kuniaki, Utsuki Satoshi, Shimizu Satoru, Iida Hideo, Miyasaka Yoshio, Takagi Hiroshi, Oka Hidehiro, Fujii Kiyotaka
Department of Neurosurgery, Nagatsuta Kousei Sogo Hospital, 4-23-1 Nagatsuta, Midori, Yokohama, Kanagawa, Japan.
Childs Nerv Syst. 2006 Nov;22(11):1457-9. doi: 10.1007/s00381-006-0210-8. Epub 2006 Sep 2.
When linear lucency is present in the occipital bone on radiographs throughout childhood, differential diagnosis becomes important because some primary sutures are similar to fractures. The authors here chronicled the normal development of ossification centers, sutures, and synchondroses in the chondrocranium by radiographic examination.
One hundred and twenty-seven children, aged from newborns to 6 years and without any skull base deformities, were referred to for radiographs of Towne's projection.
In the occipital bone at birth, three primary sutures could be identified. At the age of 0-3 years, occipital and innominate sutures started to fuse, this being complete by 4 years, whereas mendosal sutures persisted until 6 years of age, after which no primary sutures could be seen.
The complex process of skull base development features a step-wise process sutural closure for which radiographic standards allow differential diagnosis from fractures with judgment of the timing.
当儿童期X线片显示枕骨出现线状透亮影时，鉴别诊断就变得很重要，因为一些主要的颅缝与骨折相似。作者在此通过X线检查记录了软骨颅中骨化中心、颅缝和软骨结合的正常发育过程。
127名年龄从新生儿到6岁且无任何颅底畸形的儿童被转诊进行汤氏位X线片检查。
出生时枕骨可识别出三条主要颅缝。在0至3岁时，枕骨缝和无名缝开始融合，4岁时完成融合，而脑膜缝持续到6岁，此后不再能看到主要颅缝。
颅底发育的复杂过程具有逐步的颅缝闭合过程，X线标准可据此与骨折进行鉴别诊断并判断时间。
