三脑室区肿瘤手术入路及经胼胝体-穹隆间人路的显微解剖

三脑室区肿瘤的手术入路根据病变部位有适用于前部病变的经额叶皮质入路、经胼胝体前部入路、经终板入路，主要适用于中部病变的脉络丛下入路、经脉络裂入路和脉络裂下经中央帆入路，主要适用于后部病变的枕部经小脑幕入路、幕下小脑上入路、经胼胝体后部入路及经侧脑室三角区入路。解剖和临床研究表明经胼胝体穹隆间入路到达三脑室最近、术后并发症少，掌握该入路路径中扣带回、胼周动脉、胼胝体、穹隆、前连合等重要神经结构的显微解剖学知识，有利于术前手术计划的制定和实施手术。

Microsurgical anatomy of surgical approaches to the third ventricle and transcallosal- interforniceal

Surgical approaches to the third ventricle include transcortical approach, trans-anterior callosal approach, trans-lamina terminalis approach applied to the lesion at anterior portion of the third ventricle, and subchoroidal approach, transchoroidal fissure approach, subchoroidal trans-velum interpositum approach applied to the lesion at middle portion of the third ventricle, and occipital transtentorial approach, infratentorial supracerebellar approach, trans-posterior callosal approach applied to the lesion at posterior portion of the third ventricle.Anatomic and clinical study demonstrated that the distance from the transcallosal-interforniceal approach to the third ventricle was the shortest one and few postoperative complications were found.Planning for and performing surgery by the transcallosal-interforniceal approach would be facilitated by a better understanding of microsurgical anatomy of important structures, such as gyrus sulcus, pericallosal artery, the corpus callosum, fornix and anterior commissure.