• World Neurosurg · Jun 2024

    Case Reports

    Microsurgical resection for cavernous malformation of the Uncus: 3D-operative video.

    • SartiTalita Helena MartinsTHMDepartment of Neurology and Neurosurgery, Universidade Federal de São Paulo, São Paulo, Brazil; Department of Neurosurgery, Hospital Beneficência Portuguesa de São Paulo, São Paulo, Brazil., Rodrigo Akira Watanabe, Glaucia Suzanna Jong-A-Liem, Juan Carlos Ahumada-Vizcaíno, Pedro José Ramiro Muiños, Felipe Magalhães, and Feres Chaddad-Neto.
    • Department of Neurology and Neurosurgery, Universidade Federal de São Paulo, São Paulo, Brazil; Department of Neurosurgery, Hospital Beneficência Portuguesa de São Paulo, São Paulo, Brazil.
    • World Neurosurg. 2024 Jun 1; 186: 5050.

    AbstractCavernous malformations (CMs) are rare and often oligosymptomatic vascular lesions. The main symptoms include seizure and focal neurologic deficits.1-3 Depending on the symptomatology, location, size, and risk factors for bleeding, like the presence of a developmental venous anomaly, CMs can be highly morbid. Thus surgical resection may be considered. Deep-seated and eloquent CMs, like those in the uncus, can be challenging.4,5 In Video 1, we present a 23-year-old male adult who developed focal seizures (i.e., oral automatisms) after an episode of sudden intense headache 1 year ago. His neurologic examination was unremarkable. The patient consented to the procedure and publication of his image. Nevertheless, his magnetic resonance images showed an uncal 2-cm Zabramski type I CM. We exposed the insula and its limen through a right pterional craniotomy and transsylvian corridor. During the video, we discuss the surgical nuances to access and resect this CM lesion en bloc while preserving important vascular structures and white matter tracts. Postoperative neuroimaging demonstrated total resection. In postoperative day 1, the patient had 1 episode of generalized seizure and evolved with contralateral hemiparesis. The patient had a good recovery and was discharged on postoperative day 21. At the 6-month follow-up, the patient had no new epileptic events and presented complete weakness improvement. Through this minimally invasive and well-known surgical corridor, we preserve the mesial and lateral portion of the temporal lobe, reducing the risk of lesions to the Meyer loop and limbic association area.Copyright © 2024 Elsevier Inc. All rights reserved.

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