Retrosigmoid Intradural Suprameatal Approach for Petroclival Meningioma

Yukitomo Ishi; Shunsuke Terasaka; Hiroaki Motegi

doi:10.1055/s-0038-1675168

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): S296-S297
DOI: 10.1055/s-0038-1675168

Skull Base: Operative Videos

Georg Thieme Verlag KG Stuttgart · New York

Retrosigmoid Intradural Suprameatal Approach for Petroclival Meningioma

Yukitomo Ishi

¹Department of Neurosurgery, Tomakomai City Hospital, Shimizu-cho, Tomakomai, Japan

²Department of Neurosurgery, Hokkaido University School of Medicine, Kita-ku, Sapporo, Japan

,

Shunsuke Terasaka

²Department of Neurosurgery, Hokkaido University School of Medicine, Kita-ku, Sapporo, Japan

,

Hiroaki Motegi

²Department of Neurosurgery, Hokkaido University School of Medicine, Kita-ku, Sapporo, Japan

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Abstract

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Keywords

petroclival meningioma - retrosigmoid approach - retrosigmoid intradural suprameatal approach - suprameatal tubercle - anterior transpetrosal approach - sphenobasal vein - sylvian vein

Fig. 1 Pre- and postoperative imaging. (A) Preoperative gadolinium-enhanced T1-weighted imaging (Gd-T1-WI) of magnetic resonance imaging (MRI) presenting with right petroclival meningioma. (B) Postoperative Gd-T1WI of MRI showing no evidence of the tumor.

Fig. 2 Intraoperative view. (A) Exposure of the suprameatal tubercle after lateral suboccipital craniotomy. (B) The operative field after tumor removal, presenting a favorable view around the Meckel's cave.

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Fig. 1 Pre- and postoperative imaging. (A) Preoperative gadolinium-enhanced T1-weighted imaging (Gd-T1-WI) of magnetic resonance imaging (MRI) presenting with right petroclival meningioma. (B) Postoperative Gd-T1WI of MRI showing no evidence of the tumor.

Fig. 2 Intraoperative view. (A) Exposure of the suprameatal tubercle after lateral suboccipital craniotomy. (B) The operative field after tumor removal, presenting a favorable view around the Meckel's cave.