颅脑先天畸形.ppt

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1、WebZIP 7.0.3.1030 offline browser(Unregistered)on 09/13/07 10:15:08.Address:http:/202.113.53.133/jpk/contents/g/yxx/doc/2-9.files/slide0504.htmTitle:PowerPoint Presentation Size:3145 Last Modified:Thu,15 Jun 2006 02:07:46 GMTWebZIP 7.0.3.1030 offline browser(Unregistered)on 09/13/07 10:15:08.Address

2、:http:/202.113.53.133/jpk/contents/g/yxx/doc/2-9.files/slide0505.htmTitle:PowerPoint Presentation Size:6165 Last Modified:Thu,15 Jun 2006 02:07:48 GMT本节应了解、熟悉和掌握的知识点了解颅脑先天发育异常的分类 熟悉常见颅脑发育异常的影像学表现 神经皮肤综合征的影像学表现WebZIP 7.0.3.1030 offline browser(Unregistered)on 09/13/07 10:15:08.Address:http:/202.113.5

3、3.133/jpk/contents/g/yxx/doc/2-9.files/slide0506.htmTitle:PowerPoint Presentation Size:5554 Last Modified:Thu,15 Jun 2006 02:07:48 GMT本节学习中的难点脑先天性发育异常的分类和影像学表现 WebZIP 7.0.3.1030 offline browser(Unregistered)on 09/13/07 10:15:09.Address:http:/202.113.53.133/jpk/contents/g/yxx/doc/2-9.files/slide0519.

4、htmTitle:PowerPoint Presentation Size:3628 Last Modified:Thu,15 Jun 2006 02:07:58 GMTWebZIP 7.0.3.1030 offline browser(Unregistered)on 09/13/07 10:15:09.Address:http:/202.113.53.133/jpk/contents/g/yxx/doc/2-9.files/slide0508.htmTitle:PowerPoint Presentation Size:2851 Last Modified:Thu,15 Jun 2006 02

5、:07:48 GMTWebZIP 7.0.3.1030 offline browser(Unregistered)on 09/13/07 10:15:09.Address:http:/202.113.53.133/jpk/contents/g/yxx/doc/2-9.files/slide0509.htmTitle:PowerPoint Presentation Size:4811 Last Modified:Thu,15 Jun 2006 02:07:48 GMT颅缝提早骨化、闭合，致头颅畸形，包括舟状 头畸形、短头畸形、尖头畸形、偏头畸形、小 头畸形等WebZIP 7.0.3.1030 o

6、ffline browser(Unregistered)on 09/13/07 10:15:09.Address:http:/202.113.53.133/jpk/contents/g/yxx/doc/2-9.files/slide0510.htmTitle:PowerPoint Presentation Size:5317 Last Modified:Thu,15 Jun 2006 02:07:50 GMT矢状缝及顶颞缝提早闭合，头颅左右径生长受限，前后径生长显著 舟状头变形WebZIP 7.0.3.1030 offline browser(Unregistered)on 09/13/07

7、10:15:09.Address:http:/202.113.53.133/jpk/contents/g/yxx/doc/2-9.files/slide0514.htmTitle:PowerPoint Presentation Size:5582 Last Modified:Thu,15 Jun 2006 02:07:56 GMT 颅底陷入枕骨大孔周围骨质，枕骨基底部、髁部、鳞部向颅腔内陷入 扁平颅底前、中、后颅窝失去正常的阶梯状关系WebZIP 7.0.3.1030 offline browser(Unregistered)on 09/13/07 10:15:09.Address:http:

8、/202.113.53.133/jpk/contents/g/yxx/doc/2-9.files/slide0515.htmTitle:PowerPoint Presentation Size:9979 Last Modified:Thu,15 Jun 2006 02:07:56 GMT Chamberlain：硬腭后缘与枕骨大孔后缘连线，齿状突高于此线3mm为异常 McGregor：硬腭后缘与枕骨最低点连线，齿状突高于此线6mm为异常WebZIP 7.0.3.1030 offline browser(Unregistered)on 09/13/07 10:15:09.Address:http

9、:/202.113.53.133/jpk/contents/g/yxx/doc/2-9.files/slide0518.htmTitle:PowerPoint Presentation Size:2855 Last Modified:Thu,15 Jun 2006 02:07:58 GMT 先天性脑积水：又称积水性无脑畸形 病因：病因不明，可能与胚胎期颈内动脉发育 不良、母体感染、放射损伤有关 临床与病理：头颅迅速增大、面部比例失调，智力低下，多在一岁内死亡 X线平片：头颅呈球形增大，囟门大、颅缝宽、颅壁薄，颅面骨比例失调 CT表现：额、顶、颞叶脑实质几乎消失，部分枕叶、基底神经核、丘脑保存，

10、小脑、脑干、四脑室一般正常 MRI表现：幕上为水样信号，大脑镰、基底节、小脑及脑干结构正常WebZIP 7.0.3.1030 offline browser(Unregistered)on 09/13/07 10:15:09.Address:http:/202.113.53.133/jpk/contents/g/yxx/doc/2-9.files/slide0533.htmTitle:PowerPoint Presentation Size:6666 Last Modified:Thu,15 Jun 2006 02:08:08 GMT 又称 丹-瓦氏畸形 Dandy-Walker malfor

11、mation 小脑半球及蚓部发育不良、四脑室中孔和侧孔闭 锁致四脑室扩张和梗阻性脑积水WebZIP 7.0.3.1030 offline browser(Unregistered)on 09/13/07 10:15:09.Address:http:/202.113.53.133/jpk/contents/g/yxx/doc/2-9.files/slide0535.htmTitle:PowerPoint Presentation Size:6644 Last Modified:Thu,15 Jun 2006 02:08:10 GMT后颅凹扩大；巨大囊肿；小脑下蚓缺如，上蚓移位；小脑半球发育不良；

12、脑干受压，幕上脑积水鉴别：蛛网膜囊肿、大枕大池WebZIP 7.0.3.1030 offline browser(Unregistered)on 09/13/07 10:15:09.Address:http:/202.113.53.133/jpk/contents/g/yxx/doc/2-9.files/slide0536.htmTitle:PowerPoint Presentation Size:4915 Last Modified:Thu,15 Jun 2006 02:08:10 GMTWebZIP 7.0.3.1030 offline browser(Unregistered)on 09

13、/13/07 10:15:09.Address:http:/202.113.53.133/jpk/contents/g/yxx/doc/2-9.files/slide0538.htmTitle:PowerPoint Presentation Size:8529 Last Modified:Thu,15 Jun 2006 02:08:12 GMT 概述：前脑无裂畸形、无脑回、多小脑回、灰质异 位、脑裂畸形及脑沟回移位等，胚胎26月 病因不明：血管性，感染性，化学性WebZIP 7.0.3.1030 offline browser(Unregistered)on 09/13/07 10:15:09

14、.Address:http:/202.113.53.133/jpk/contents/g/yxx/doc/2-9.files/slide0539.htmTitle:PowerPoint Presentation Size:9369 Last Modified:Thu,15 Jun 2006 02:08:12 GMT 无脑回畸形：多见顶枕叶 CT、MR表现:脑表面光滑，脑回、沟缺如 脑室扩大,侧裂池、蛛网膜 下腔增宽WebZIP 7.0.3.1030 offline browser(Unregistered)on 09/13/07 10:15:09.Address:http:/202.113.5

15、3.133/jpk/contents/g/yxx/doc/2-9.files/slide0541.htmTitle:PowerPoint Presentation Size:4412 Last Modified:Thu,15 Jun 2006 02:08:12 GMTWebZIP 7.0.3.1030 offline browser(Unregistered)on 09/13/07 10:15:09.Address:http:/202.113.53.133/jpk/contents/g/yxx/doc/2-9.files/slide0551.htmTitle:PowerPoint Presen

16、tation Size:9206 Last Modified:Thu,15 Jun 2006 02:08:20 GMT 病理：融合型、非融合型 临床：难治性癫痫，运动障碍，智力低下，发 育迟缓 影像学表现：中央前、后回附近表面延伸至室管膜下 裂隙（P-E缝）周围皮质不规则增厚WebZIP 7.0.3.1030 offline browser(Unregistered)on 09/13/07 10:15:09.Address:http:/202.113.53.133/jpk/contents/g/yxx/doc/2-9.files/slide0555.htmTitle:PowerPoint Presentation Size:4677 Last Modified:Thu,15 Jun 2006 02:08:22 GMTWebZIP 7.0.3.1030 offline browser(Unregistered)on 09/13/07 10:15:09.Address:http:/202.113.53.133/jpk/contents/g/yxx/doc/2-9.files/slide05