颞叶内侧解剖及与周围结构的毗邻关系

Mesial temporal lobe anatomy and its relationships with surrounding structures

目的了解颞叶内侧解剖及其与周围结构的相互关系。方法用20个灌注有色乳胶的尸体头颅进行显微镜下解剖,观察并获取图像资料。结果颞叶内侧的海马、伞、杏仁体和脉络膜裂为脑室内的结构,钩、海马旁回和齿状回为脑室外结构。钩前段面向侧裂池、颈内动脉和大脑中动脉,后段面向大脑脚,钩尖指向动眼神经和后交通动脉。钩内侧毗邻大脑后动脉、脉络膜前动脉和视束。结论颞叶内侧结构复杂,了解其解剖及其与周围结构的关系,有助于颞叶内侧病变显微手术的开展。

Objective To explore the anatomy of mesial temporal lobe and the relationships between the mesial temporal lobe and its surrounding structures. Methods Twenty formalin-fixed adult cadaveric heads after perfusion of the arteries and veins with colored latex were studied under microscope, and photographs were taken. Results The hippocampus, fimbria, amygdala and choroidal fissure constituting the mesial temporal lobe were intraventricular structures, and uncus, parahippocampal gyrus, and dentate gyrus were extraventricular structures. The apex of the uncus pointed to the oculomotor nerve and posterior communicating artery. The anterior segment faced the cistern of Sylvius, ICA and MCA. The posterior segment faced the Crus cerebri. The uncus was related medially to the posterior cerebral artery, anterior choroidal artery, and optic tract. Conclusion The structures of the mesial temporal lobe are complicated, so understanding of the mesial temporal lobe anatomy and the relationships between the mesial temporal lobe and its surrounding structures is conducive to the microsurgical operations of the mesial temporal lobe lesions.