Endoscope-Assisted Retrosigmoid Approach for Cerebellopontine Angle Epidermoid Tumor

Francisco Vaz-Guimaraes; Paul A. Gardner; Juan C. Fernandez-Miranda

doi:10.1055/s-0038-1669983

Journal of Neurological Surgery Part B: Skull Base, Inhaltsverzeichnis

CC BY-NC-ND 4.0 · J Neurol Surg B Skull Base 2018; 79(S 05): S409-S410
DOI: 10.1055/s-0038-1669983

Skull Base: Operative Videos

Georg Thieme Verlag KG Stuttgart · New York

Endoscope-Assisted Retrosigmoid Approach for Cerebellopontine Angle Epidermoid Tumor

Francisco Vaz-Guimaraes

¹Department of Neurosurgery, Baylor College of Medicine, Houston, Texas, United States

,

Paul A. Gardner

²Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, United States

,

Juan C. Fernandez-Miranda

²Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, United States

› Institutsangaben

Abstract

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Keywords

cerebellopontine angle - endoscope-assisted - epidermoid tumor - retrosigmoid approach

Fig. 1 (A) preoperative, T2-weight axial MRI showing a right CPA epidermoid cyst; (B) Microscopic view at the beginning of the operation after retromastoid craniectomy; (C) Microscopic view after the microscopic resection of the cyst; (D) Endoscopic view (0-degree endoscope) of the CPA. Note the now visible residuals attached to the origin of the trigeminal (V), facial (VII) and vestibulocochlear (VIII) nerves; (E and F) Endoscopic view (0-degree endoscope) and identification of hidden remnants close to the left oculomotor (III) nerve exit zone. MRI, magnetic resonance imaging, CPA, cerebellopontine angle, *cyst.

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Fig. 1 (A) preoperative, T2-weight axial MRI showing a right CPA epidermoid cyst; (B) Microscopic view at the beginning of the operation after retromastoid craniectomy; (C) Microscopic view after the microscopic resection of the cyst; (D) Endoscopic view (0-degree endoscope) of the CPA. Note the now visible residuals attached to the origin of the trigeminal (V), facial (VII) and vestibulocochlear (VIII) nerves; (E and F) Endoscopic view (0-degree endoscope) and identification of hidden remnants close to the left oculomotor (III) nerve exit zone. MRI, magnetic resonance imaging, CPA, cerebellopontine angle, *cyst.