脈絡膜裂傷の微小外科的解剖学

脈絡膜裂の顕微手術解剖学は、25の死体頭で調べられました。外側心室の脈絡叢の付着部位である脈絡膜裂は、外側脳室の内側部分のフォニックスと視床の間に位置しています。脈絡膜裂は3つの部分に分かれています。（a）フォーニックスと視床の体の間の外側心室の体に位置する体の部分、（b）フォーニックスのCRUの間の外側心室の心房に位置する心房部分と、パルビナーと（c）fornの間にある時間の間にある部分的な部分の間にあります。視床の。亀裂の3つの部分は、基底槽と第3脳室の屋根に隣接する外側心室の壁に最も薄い部位です。外側心室からの脈絡膜裂の体部分を通って開くと、ベルム間骨孔と第三脳室が露出します。側頭角から脈絡膜裂の側頭部を開くと、周囲および硬膜の構造が露出します。アトリウムから亀裂の心房部分を開くと、四分体貯水槽、松果体領域、および周囲水槽の後部が露出します。亀裂の各部分の神経、動脈、および静脈の関係がレビューされます。亀裂の各部分を通じて向けられた手術アプローチもレビューされています。

The microsurgical anatomy of the choroidal fissure was examined in 25 cadaveric heads. The choroidal fissure, the site of attachment of the choroid plexus in the lateral ventricle, is located between the fornix and thalamus in the medial part of the lateral ventricle. The choroidal fissure is divided into three parts: (a) a body portion situated in the body of the lateral ventricle between the body of the fornix and the thalamus, (b) an atrial part located in the atrium of the lateral ventricle between the crus of the fornix and the pulvinar, and (c) a temporal part situated in the temporal horn between the fimbria of the fornix and the lower surface of the thalamus. The three parts of the fissure are the thinnest sites in the wall of the lateral ventricle bordering the basal cisterns and the roof of the third ventricle. Opening through the body portion of the choroidal fissure from the lateral ventricle exposes the velum interpositum and third ventricle. Opening through the temporal portion of the choroidal fissure from the temporal horn exposes the structures in the ambient and crural cisterns. Opening through the atrial portion of the fissure from the atrium exposes the quadrigeminal cistern, the pineal region, and the posterior portion of the ambient cistern. The neural, arterial, and venous relationships of each part of the fissure are reviewed. The operative approaches directed through each part of the fissure are also reviewed.