Artigo Acesso aberto Produção Nacional Revisado por pares

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

ISSN

2643-5217

Autores

Gustavo Simiano Jung, Joel Fernando Sanabria Duarte, Afonso Henrique de Aragão, Ronaldo Vosgerau, Ricardo Ramina,

Tópico(s)

Trigeminal Neuralgia and Treatments

Resumo

The 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)