Salgado-Camacho JM, Reyes-Téllez-Girón J, Zaragoza-Flores F, Tomasini-Ortiz P, Gómez-Amador JL, Bargés-Coll J

Language: Spanish
References: 14
Page: 113-118
PDF size: 147.27 Kb.

ABSTRACT

Target: to explore the microsurgical anatomy of the middle cerebral artery and sylvian cistern. Material and method: in four hemispheres fixed with 10% formaldelhyde and subsequently frozen at -15°C for 8 days, using Rhoton dissectors, the sylvian cistern was dissected into its three portions and four segments of the middle cerebral artery were identified, retrying frontal and temporal operculum fragments. Then fundamental elements of the middle cerebral artery and sylvian cistern were identified and described. Results: the process to fix and freeze the hemispheres allows the separation of the gray sustance with the aim to show the four segments of the middle cerebral artery: segment I (sphenoidal), II (insular), III (opercular), IV (cortical). At the same time it was possible to identify the components of the sylvian cistern (sylvian fisure, interopercular groves and sylvian fossa). These anatomic elements are fundamental structures in the practise of vascular neurosurgery. Previous dissection of them provides a better microanatomical knowledge. Conclusion: sylvian cistern dissection in hemispheres as described above, allows identification of its fundamental structures and segments as well as those of the middle cerebelar artery. These anatomical structures are of vital importante for the study of vascular neuroanatomy. The procedure described above allows us to develop the necessary skills to perform neurosurgical interventions of the area.

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