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The Supratonsillar Approach to the Inferior Cerebellar Peduncle: Anatomy, Surgical Technique, and Clinical Application to Cavernous Malformations by Michael T. Lawton; Alfredo Quiñones-Hinojosa; Peter Jun is a Medicine article available to read on EtoBox.

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## Abstract ## OBJECTIVE: To introduce the supratonsillar approach, an approach that traverses the tonsillobiventral fissure in a trajectory over the cerebellar tonsil to the inferior cere-bellar peduncle, and to demonstrate the utility of this approach for resecting peduncular cavernous malformations. ## METHODS: Anatomy of the cerebellar tonsil and surrounding fissures, arteries, and veins are reviewed using cadaveric brain specimens. The surgical approach uses the three-quarter prone position, a suboccipital craniotomy, and wide splitting of the tonsillobiventral fissure. ## RESULTS: Of our experience with 171 patients with cavernous malformations, six patients had lesions in the inferior cerebellar peduncle that were resected using the supratonsillar approach. All cavernous malformations were removed completely and no patients experienced surgical complications or new deficits. @@CONCLUSION:@@ The supratonsillar approach differs from the transvermian and telove-lar approaches to the fourth ventricle, with a more superolateral trajectory that leads instead to the inferior cerebellar peduncle. By splitting the tonsillobiventral fissure and mobilizing the tonsil inferomedially, th

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Author

Michael T. Lawton; Alfredo Quiñones-Hinojosa; Peter Jun

Publisher

Ovid Technologies (Wolters Kluwer Health)

Published

2006

Field

Medicine (Health Sciences)