Microsurgical Anatomy Of The Subarachnoid Cisterns, Related Structures And Surgical Spaces Of The Sellar Region

Sellar region is a place where intracranial tumors and aneurysms often occur. The subarachnoid cisterns of this region not only provide space for expansions of lesions, but also provide extracerebral access and natural bounding planes for surgical exploration. The microanatomical knowledge about subarachnoid cisterns of sellar region is very important. Many authors have done much research work on this subject, but there are still some structures which have been reported by few authors or nearly no description in literature. So at present the available descriptions on subarachnoid cisterns of sellar region can not satisfy clinical needs. 15 adult, formalin-fixed human heads were used in this report. Brain tissue having been resected into pieces step by step, sellar region was exposed in its natural appearance. Then, microanatomy of the structures was progressively studied superiorly. The structures and related significance in microsurgery were discussed.Research contents:1.The distribution , boundaries, separating structures, contents and surgical significane of such cisterns as olfactory cistern, sphenoidal segment of Sylvian cistern, cistern lamina terminalis, chiasmatic cistern, carotid cistern, crural cistern and the cistern of posterior communicting artery.2,The structural characteristics, surrounding relations and surgical significance of the supraclinoid portions of ICA, optic pathways, falicform folds, pituitary stalks, diaphragma sellae and diaphragmatic foramen, sheath of...