Absence of the superior petrosal veins and sinus: Surgical considerations

Surgical Neurology International
Ken MatsushimaAlbert L Rhoton

Abstract

The superior petrosal vein, one of the most constant and largest drainage pathways in the posterior fossa, may result in complications if occluded. This study calls attention to a unique variant in which the superior petrosal veins and sinus were absent unilaterally, and the venous drainage was through the galenic and tentorial drainage groups. This study examines one venogram and another anatomic specimen in which the superior petrosal vein and sinus were absent. The superior petrosal veins, described as 1-3 bridging veins, emptying into the superior petrosal sinus, are the major drainage pathways of the petrosal group of posterior fossa veins. In the cases presented, the superior petrosal vein and sinus were absent and venous drainage was through the galenic and tentorial groups, including the lateral mesencephalic or bridging vein on the tentorial cerebellar surface. In cases in which the superior petrosal sinus and veins are absent, care should be directed to preserving the collateral drainage through the galenic and tentorial tributaries. Although surgical strategies for intraoperative management and preservation of venous structures are still controversial, knowledge of the possible anatomical variations is considered to ...Continue Reading

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Feb 25, 2014·Neurosurgery·Ken MatsushimaAlbert L Rhoton

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Citations

Jan 14, 2016·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Pattana WangaryattawanichL Anne Hayman
Apr 19, 2019·Interventional Neuroradiology : Journal of Peritherapeutic Neuroradiology, Surgical Procedures and Related Neurosciences·Xianli LvJames Wang
Feb 20, 2021·The Journal of Craniofacial Surgery·Dragoş-Ionuţ Mincă, Mugurel Constantin Rusu
Nov 19, 2021·Journal of Neurological Surgery. Part A, Central European Neurosurgery·Irwan Barlian Immadoel HaqKenji Ohata

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