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目的通过对颅中窝内蛛网膜颗粒的显微解剖、组织学和CT观察,进一步完善蛛网膜颗粒的形态学资料。方法分别对33例成人头颅湿标本和40例脑血管CT成像资料进行显微解剖、组织学与影像学观察。结果颅中窝内蛛网膜颗粒大多分布在脑膜中静脉窦、蝶顶窦、圆孔外侧及海绵窦,颗粒多呈圆形、椭圆形及不规则形;光镜下可将颗粒分为单个型和分叶型;显微解剖和CTV观察颅中窝内颗粒的平均数量分别为8.75和3.52个,CTV观察海绵窦内颗粒显示不清。结论对颅中窝内蛛网膜颗粒深入系统的观察,可以丰富解剖学和影像学资料;有助于神经外科手术入路的选择和手术过程中保护蛛网膜颗粒,避免术后并发症的发生。
Objective To further improve the morphological data of arachnoid granules by means of microdissection, histology and CT observation of intracranial arachnoid granules. Methods 33 cases of adult skull wet specimens and 40 cases of cerebrovascular CT imaging data were analyzed by microscopic anatomy, histology and imaging studies. Results Most of the intracranial arachnoid granules were distributed in the meninges, in the sinuses, the apical sinus, the lateral part of the round holes and the cavernous sinus. The granules were mostly round, oval and irregular. The granules could be divided into single type And lobulated type. The average numbers of intracranial foramina were 8.75 and 3.52 respectively by microdissection and CTV. The particles in the cavernous sinus were unclear by CTV. Conclusion The deep and systematic observation of intracranial arachnoid granules can enrich the anatomy and imaging data. It is helpful for the selection of neurosurgery and the protection of arachnoid granules during the operation to avoid the postoperative complications.