CPA Epidermoid Cyst with Rare Anatomic Variant: Anterior Inferior Cerebellar Artery Embedded in the Subarcuate Fossa: Operative Video and Technical Nuances

Carlos Candanedo; Sergey Spektor

doi:10.1055/s-0038-1675165

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

CC BY-NC-ND 4.0 · J Neurol Surg B Skull Base 2019; 80(S 03): S323-S324
DOI: 10.1055/s-0038-1675165

Skull Base: Operative Videos

Georg Thieme Verlag KG Stuttgart · New York

CPA Epidermoid Cyst with Rare Anatomic Variant: Anterior Inferior Cerebellar Artery Embedded in the Subarcuate Fossa: Operative Video and Technical Nuances

Carlos Candanedo

¹Department of Neurosurgery, Hadassah-Hebrew University Medical Center, Jerusalem, Israel

,

Sergey Spektor

¹Department of Neurosurgery, Hadassah-Hebrew University Medical Center, Jerusalem, Israel

› Author Affiliations

Abstract

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Keywords

epidermoid cyst - trigeminal neuralgia - AICA - subarcuate artery - operative video

Fig. 1 Pre- and postoperative magnetic resonance imaging (MRI). (A) Preoperative axial 3D gradient echo steady-state sequence MRI showing a right cerebellopontine angle (CPA) epidermoid cyst pushing posterolaterally the right trigeminal nerve. (B) Postoperative axial diffusion-weighted imaging (DWI) showing no signs of epidermoid cyst tumor residual.

Fig. 2 Intraoperative imaging. (A) Intraoperative view showing the right anterior inferior cerebellar artery's (AICA's) loop embedded in the dura covering the subarcuate artery's exit. (B) View showing the epidermoid cyst tumor resection between the trigeminal nerve and the facial-vestibulocochlear bundle.

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Fig. 1 Pre- and postoperative magnetic resonance imaging (MRI). (A) Preoperative axial 3D gradient echo steady-state sequence MRI showing a right cerebellopontine angle (CPA) epidermoid cyst pushing posterolaterally the right trigeminal nerve. (B) Postoperative axial diffusion-weighted imaging (DWI) showing no signs of epidermoid cyst tumor residual.

Fig. 2 Intraoperative imaging. (A) Intraoperative view showing the right anterior inferior cerebellar artery's (AICA's) loop embedded in the dura covering the subarcuate artery's exit. (B) View showing the epidermoid cyst tumor resection between the trigeminal nerve and the facial-vestibulocochlear bundle.