Surgical approaches to IV ventricle--anatomical study

Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery
A C MussiAlbert L Rhoton

Abstract

Knowledge of anatomy of the IV ventricle is basic to surgical approach of any kind of lesion in its compartment as well as for those located in its neighborhood. The purpose of this study is to demonstrate the surgical approach options for the IV ventricle, based on the step by step dissection of anatomical specimens. Fifty formalin-fixed specimens provided were the material for this study. The dissections were performed in the microsurgical laboratory in Gainesville, Florida, USA. The IV ventricle in a midline sagittal cut shows a tent-shaped cavity with its roofs pointing posteriorly and the floor formed by the pons and the medulla. The superior roof is formed by the superior cerebellar peduncles laterally and the superior medullary velum on the midline. The inferior roof is formed by the tela choroidea, the velum medullary inferior, and the nodule. The floor of the IV ventricle has a rhomboid shape. The rostral two thirds are related to the pons, and the caudal one third is posterior to the medulla. The median sulcus divides the floor in symmetrical halves. The sulcus limitans runs laterally to the median sulcus, and the area between the two sulci is called the median eminence. The median eminence contains rounded prominence...Continue Reading

References

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Citations

Feb 8, 2021·Neurocirugía·Pablo García-FeijooEvandro De Oliveira
Mar 11, 2021·Journal of Neurological Surgery. Part A, Central European Neurosurgery·Martina PiloniPietro Mortini

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