Gailloud P, San Millán Ruíz D, Muster M, Murphy K J, Fasel J H, Rüfenacht D A
Division of Diagnostic and Interventional Radiology, University of Geneva, Switzerland.
AJNR Am J Neuroradiol. 2000 Nov-Dec;21(10):1923-9.
The laterocavernous sinus (LCS) has recently been recognized as one of the major drainage pathways of the superficial middle cerebral vein (SMCV). Our purpose was to investigate the drainage pattern of the SMCV, with special emphasis on the angiographic anatomy of the LCS.
The drainage pathways of the SMCV were evaluated prospectively on 100 selective carotid angiograms obtained in 65 consecutive patients.
The SMCV was absent in 19% of cases. A classic termination into the cavernous sinus (CS) was found in 20%, a paracavernous sinus in 39%, and an LCS in 22%. The LCS drained toward the pterygoid plexus (27%), the superior petrosal sinus (18%), the posterior aspect of the CS (32%), or a combination of these pathways (23%). A complete absence of connection between the LCS and CS was observed in 63.5% of the patients.
The LCS is a laterosellar venous space that is anatomically and angiographically distinct from the CS. Secondary small anastomoses between the LCS and CS may make it difficult to differentiate the two structures. Appreciation of the course and connection pattern of the LCS is important, particularly when planning an endovascular approach to treatment of lesions in the region of the CS.
外侧海绵窦（LCS）最近被认为是大脑中浅静脉（SMCV）的主要引流途径之一。我们的目的是研究SMCV的引流模式，特别关注LCS的血管造影解剖结构。
对连续65例患者的100例选择性颈动脉血管造影进行前瞻性评估，以确定SMCV的引流途径。
19%的病例中未发现SMCV。20%的病例中发现SMCV经典地汇入海绵窦（CS），39%汇入海绵窦旁窦，22%汇入LCS。LCS引流至翼静脉丛（27%）、岩上窦（18%）、CS后部（32%）或这些途径的组合（23%）。63.5%的患者中观察到LCS与CS之间完全没有连接。
LCS是鞍旁静脉间隙，在解剖学和血管造影上与CS不同。LCS与CS之间的继发性小吻合可能使区分这两个结构变得困难。了解LCS的走行和连接模式很重要，尤其是在计划对CS区域病变进行血管内治疗时。
