Meckel腔的断层解剖及其临床意义  

The sectional anatomy and clinical significance of Meckel cave

作　　者：韩群颖[1] 柏根基[1] 王鹤鸣[1] 童鑫康[1] 方实邦[1] 

机构地区：[1]南京医科大学解剖学教研室

出　　处：《中国临床解剖学杂志》1999年第2期109-111,共3页Chinese Journal of Clinical Anatomy

摘　　要：目的：为Ｍｅｃｋｅｌ腔的影像诊断学和显微外科学提供解剖学资料。方法：利用３５例头颅连续断层标本，测量和观察Ｍｅｃｋｅｌ腔在各个断面上的形态、大小和毗邻。结果：Ｍｅｃｋｅｌ腔为由颅后窝向颅中窝后内侧部分突入的硬脑膜陷凹，前方和上方与海绵窦后部静脉间隙、外侧与颅中窝内侧壁硬脑膜、内侧与颈内动脉和脑神经Ⅳ、后下方与颞骨岩部尖相毗邻；三叉神经节位于Ｍｅｃｋｅｌ腔内，呈半月形或三角形，其表面覆盖有蛛网膜，此蛛网膜包绕三叉神经形成蛛网膜下腔的三叉池。Ｍｅｃｋｅｌ腔的上下径、内外径和前后径分别为：１２．２±１．６ｍｍ，５．５±０．７ｍｍ和１３．６±２．３ｍｍ，三叉神经节的相应数值分别为：１０．３±１．９ｍｍ，３．２±０．９ｍｍ和１２．７±１．７ｍｍ。Objective:To provide anatomic data for imaging diagnosis and microsurgery of Meckel cave.Methods:The shape, seize and adjacent structure of Meckel cave were studied using 35 sets of serial head sections.Results:Meckel cave was a dural recess extending from the posterior fossa to the posteromedial portion of the middle cranial fossa.It was adjacent anterosuperior to the venous space of posterior cavernous sinus,laterally to the medial part of the middle cranial fossa,interiorly to the internal carotid artery and the abducens nerve as well as inferoposterior to the petrous apex of temporal bone.The trigeminal ganglion was located in Meckel cave, appeared as a crescent or triangular structure and was surrounded by the arachnoid sheath which forms the subarachnoid trigeminal cistern.The superoinferior,interolateral and anteroposterior diameters of Meckel cave were 12.2±1.6 mm,5.5±0.7 mm and 13.6±2.3 mm respectively; the corresponding data of the trigeminal ganglion were 10.3±1.9 mm, 3.2±0.9 mm and 12.7±1.7 mm respectively.Conclusions:The knowledge of Meckel cave and the trigeminal ganglion was important for imaging diagnosis and microsurgery.

关 键 词：MECKEL腔 三叉神经节 断层解剖 

分 类 号：R322.85[医药卫生—人体解剖和组织胚胎学]