Revuelta Barbero JM, Porto E, Medina EJ, Bray DP, Garzon-Muvdi T, Solares CA, Pradilla G. Microsurgical Gross Total Resection of an Intracanalicular-Cisternal (Koos-4) Vestibular Schwannoma via a Retrosigmoid Approach with Intraoperative Endoscopic Assistance.
World Neurosurg 2021;
158:225. [PMID:
34864191 DOI:
10.1016/j.wneu.2021.11.110]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 11/24/2021] [Accepted: 11/25/2021] [Indexed: 10/19/2022]
Abstract
We present the case of a 23-year-old female with a history of progressive hearing loss in the left ear, dizziness, and vertigo. Magnetic resonance imaging demonstrated a left mass extending from the internal auditory canal into the cerebellopontine angle (Koos-4).1 A retrosigmoid approach assisted with a microinspection tool was chosen.2-5 Microsurgical near total resection was achieved. The patient presented a postoperative facial deficit (House-Brackman grade 2 postoperative), with complete resolution after 2 months. Video 1 highlights the critical steps of the retrosigmoid approach and the benefit of using the microinspection tool for vestibular schwannoma resection.
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