Role of Extradural Clinoidectomy and Optic Unroofing in Resection of an Anterior Clinoidal Meningioma with Encasement of the Internal Carotid Artery and Its Branches

Sima Sayyahmelli; Zhaoliang Sun; Emel Avci; Mustafa K. Başkaya

doi:10.1055/s-0041-1729996

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

CC BY-NC-ND 4.0 · J Neurol Surg B Skull Base 2022; 83(S 03): e650-e652
DOI: 10.1055/s-0041-1729996

Skull Base: Operative Videos

Role of Extradural Clinoidectomy and Optic Unroofing in Resection of an Anterior Clinoidal Meningioma with Encasement of the Internal Carotid Artery and Its Branches

Sima Sayyahmelli

¹Department of Neurological Surgery, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States

,

Zhaoliang Sun

¹Department of Neurological Surgery, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States

,

Emel Avci

¹Department of Neurological Surgery, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States

,

Mustafa K. Başkaya

¹Department of Neurological Surgery, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States

› Author Affiliations

Abstract

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Keywords

anterior clinoidal meningiomas - encasement - extradural clinoidectomy - internal carotid artery - skull base

Fig. 1 Preoperative and postoperative MRI images. MRI, magnetic resonance imaging.

Fig. 2 Cadaveric dissection and intraoperative images. ACP, anterior clinoid process; A1, proximal segment of anterior cerebral artery; DS, dorsum sellae; HF, hypophyseal fossa; ICA, internal carotid artery; II, optic nerve; III, oculomotor nerve; IV, trochlear nerve; M1, proximal segment of middle cerebral artery; OC, optic canal; OS, optic strut; Pcom, posterior communicating artery; PCP, posterior clinoid process; SOF, superior orbital fissure; TS, tuberculum sella; V1, ophthalmic division of trigeminal nerve; V2, maxillary division of trigeminal nerve; V3, mandibular division of trigeminal nerve; VI, abducens nerve.

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Figures

Fig. 1 Preoperative and postoperative MRI images. MRI, magnetic resonance imaging.

Fig. 2 Cadaveric dissection and intraoperative images. ACP, anterior clinoid process; A1, proximal segment of anterior cerebral artery; DS, dorsum sellae; HF, hypophyseal fossa; ICA, internal carotid artery; II, optic nerve; III, oculomotor nerve; IV, trochlear nerve; M1, proximal segment of middle cerebral artery; OC, optic canal; OS, optic strut; Pcom, posterior communicating artery; PCP, posterior clinoid process; SOF, superior orbital fissure; TS, tuberculum sella; V1, ophthalmic division of trigeminal nerve; V2, maxillary division of trigeminal nerve; V3, mandibular division of trigeminal nerve; VI, abducens nerve.