
Dorsal displacement of the facial nerve in vestibular schwannoma surgery
2021; American Association of Neurological Surgeons; Volume: 5; Issue: 2 Linguagem: Inglês
10.3171/2021.7.focvid2182
ISSN2643-5217
AutoresGustavo Simiano Jung, Joel Fernando Sanabria Duarte, Afonso Henrique de Aragão, Ronaldo Vosgerau, Ricardo Ramina,
Tópico(s)Trigeminal Neuralgia and Treatments
ResumoThe course of the facial nerve (FN) has been extensively investigated in patients with vestibular schwannomas (VSs). FN running dorsally to the tumor capsule accounts for less than 3% of the cases. Diffusion tensor imaging (DTI)–based fiber tracking helps to preoperatively identify the FN. During surgery, a higher risk of injury is associated with the dorsal location of the FN. The authors demonstrate the nuances and tricks to identify and preserve a dorsal displaced FN during resection of a large VS, T3b according to the Hannover classification, through the retrosigmoid-transmeatal approach. The video can be found here: https://stream.cadmore.media/r10.3171/2021.7.FOCVID2182
Referência(s)