Resection of Cerebellopontine Angle Meningioma via Retrosigmoid Approach Aiming for Hearing Improvement

Yuki Shinya; Hideaki Ono; Tomohiro Inoue; Akira Tamura

doi:10.1055/s-0038-1676990

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): S302-S303
DOI: 10.1055/s-0038-1676990

Skull Base: Operative Videos

Georg Thieme Verlag KG Stuttgart · New York

Resection of Cerebellopontine Angle Meningioma via Retrosigmoid Approach Aiming for Hearing Improvement

Yuki Shinya

¹Department of Neurosurgery, Fuji Brain Institute and Hospital, Shizuoka, Japan

,

Hideaki Ono

¹Department of Neurosurgery, Fuji Brain Institute and Hospital, Shizuoka, Japan

,

Tomohiro Inoue

²Department of Neurosurgery, NTT Medical Center Tokyo, Tokyo, Japan

,

Akira Tamura

¹Department of Neurosurgery, Fuji Brain Institute and Hospital, Shizuoka, Japan

› Author Affiliations

Abstract

Full Text

PDF Download

Keywords

cerebellopotine angle meningioma - retrosigmoid approach - hearing improvement

Fig. 1 Pre- and postoperative magnetic resonance imaging. Preoperative gadollinium enhanced magnetic resonance imaging (MRI) revealed meningioma at cerebellopontine angle, 35 mm in maximum diameter. Postoperative MRI showed gross total removal of the tumor, with slight enhancement along the cranial nerves 7th and 8th.

Fig. 2 Intraoperative images: (A) the arachnoid membrane was restored from the tumor; (B) detachment from petrous bone; (C) internal decompression; (D) dissection from lower cranial nerves; (E) detachment from cranial nerves 7th and 8th (F) detachment from brain stem and cerebellum; (G) gross total removal of the tumor, except for the adhesion to the cranial nerves 7th and 8th. CN, cranial nerve.

www.thieme.com/skullbasevideos

www.thieme.com/jnlsbvideos

Quality:

Download

Figures

Fig. 1 Pre- and postoperative magnetic resonance imaging. Preoperative gadollinium enhanced magnetic resonance imaging (MRI) revealed meningioma at cerebellopontine angle, 35 mm in maximum diameter. Postoperative MRI showed gross total removal of the tumor, with slight enhancement along the cranial nerves 7th and 8th.

Fig. 2 Intraoperative images: (A) the arachnoid membrane was restored from the tumor; (B) detachment from petrous bone; (C) internal decompression; (D) dissection from lower cranial nerves; (E) detachment from cranial nerves 7th and 8th (F) detachment from brain stem and cerebellum; (G) gross total removal of the tumor, except for the adhesion to the cranial nerves 7th and 8th. CN, cranial nerve.