A stepwise illustration of the retrosigmoid approach for resection of a cerebellopontine meningioma

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The retrosigmoid approach is a work-horse approach to the cerebellopontine angle (CPA), providing access from the foremen magnum to the tentorium. Indications for this approach are variable such as resection of meningiomas, acoustic neuromas and epidermoid tumors, treatment of vascular lesions of vertebrobasilar system, vascular decompression of cranial nerves (V, VII, IX, X), cranial nerve neurectomies, and intrinsic lesions of the cerebellum and brainstem. In this video, we demonstrate the use of retrosigmoid craniotomy for resection of a large CPA meningioma, delineating all steps including positioning, mapping.

The video can be found here: http://youtu.be/kISkYS16Brk.

The retrosigmoid approach is a work-horse approach to the cerebellopontine angle (CPA), providing access from the foremen magnum to the tentorium. Indications for this approach are variable such as resection of meningiomas, acoustic neuromas and epidermoid tumors, treatment of vascular lesions of vertebrobasilar system, vascular decompression of cranial nerves (V, VII, IX, X), cranial nerve neurectomies, and intrinsic lesions of the cerebellum and brainstem. In this video, we demonstrate the use of retrosigmoid craniotomy for resection of a large CPA meningioma, delineating all steps including positioning, mapping.

The video can be found here: http://youtu.be/kISkYS16Brk.

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Contributor Notes

Address correspondence to: Mustafa K. Başkaya, M.D., Department of Neurological Surgery, University of Wisconsin, School of Medicine CSC, K4/822, 600 Highland Avenue, Madison, WI 53792. email: m.baskaya@neurosurgery.wisc.edu.Please include this information when citing this paper: DOI: 10.3171/2014.V1.FOCUS13445.

© AANS, except where prohibited by US copyright law.

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