Retrosigmoid Craniotomy for Resection of an Epidermoid Cyst of the Posterior Fossa

M. Yashar S. Kalani; William T. Couldwell

doi:10.1055/s-0038-1669980

Journal of Neurological Surgery Part B: Skull Base, Table of Contents

CC BY-NC-ND 4.0 · J Neurol Surg B Skull Base 2018; 79(S 05): S411-S412
DOI: 10.1055/s-0038-1669980

Skull Base: Operative Videos

Georg Thieme Verlag KG Stuttgart · New York

Retrosigmoid Craniotomy for Resection of an Epidermoid Cyst of the Posterior Fossa

M. Yashar S. Kalani

¹Department of Neurosurgery, University of Virginia, Charlottesville, Virginia, United States

,

William T. Couldwell

²Department of Neurosurgery, Clinical Neurosciences Center, University of Utah, Salt Lake City, Utah, United States

› Author Affiliations

Abstract

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Keywords

retrosigmoid - cerebellopontine angle - epidermoid

Fig. 1 (a) Axial diffusion-weighted and (b) sagittal T1-weighted magnetic resonance imaging demonstrating a cerebellopontine angle epidermoid cyst with mass effect upon the brainstem. (c) Postoperative axial diffusion-weighted magnetic resonance imaging demonstrates complete removal of the lesion.

Fig. 2 Intraoperative photographs demonstrating (a) opening of the tumor capsule; (b) visualization of the basilar artery after partial removal of tumor; and (c) endoscopic views of the posterior fossa after resection of the tumor.

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Figures

Fig. 1 (a) Axial diffusion-weighted and (b) sagittal T1-weighted magnetic resonance imaging demonstrating a cerebellopontine angle epidermoid cyst with mass effect upon the brainstem. (c) Postoperative axial diffusion-weighted magnetic resonance imaging demonstrates complete removal of the lesion.

Fig. 2 Intraoperative photographs demonstrating (a) opening of the tumor capsule; (b) visualization of the basilar artery after partial removal of tumor; and (c) endoscopic views of the posterior fossa after resection of the tumor.