CC BY-NC-ND 4.0 · J Neurol Surg B 2019; 80(S 03): S325-S326
DOI: 10.1055/s-0038-1676997
Skull Base: Operative Videos
Georg Thieme Verlag KG Stuttgart · New York

Epidermoid Cyst in the Cerebellopontine Angle: Technical Description Video

Marcus Vinicius de Morais
1  Department of Neurosurgery, Hospital Militar de Área de São Paulo, São Paulo, Brazil
,
Romulo Almino de Alencar Arrais Mota
1  Department of Neurosurgery, Hospital Militar de Área de São Paulo, São Paulo, Brazil
,
Thais Aparecida Marques
1  Department of Neurosurgery, Hospital Militar de Área de São Paulo, São Paulo, Brazil
,
Rafael Duarte de Souza Loduca
1  Department of Neurosurgery, Hospital Militar de Área de São Paulo, São Paulo, Brazil
,
Paulo Mácio de Porto Melo
1  Department of Neurosurgery, Hospital Militar de Área de São Paulo, São Paulo, Brazil
› Author Affiliations
Further Information

Publication History

01 June 2018

11 November 2018

Publication Date:
08 January 2019 (eFirst)

  

Abstract

Objectives To describe the operative technique for treatment of epidermoid cysts in the cerebellopontine angle (CPA).

Design The present video is a case report.

Setting Patient is positioned in three-quarters prone. Retrosigmoid approach should be made under neurological monitoring and with neuronavegation to help achieve maximal safe resection. The skin incision is vertical, slightly curved, 5 mm medial to the mastoid notch. Craniectomy is superiorly limited by the transverse sinus and laterally limited by the sigmoid sinus. A C-shaped durotomy is made with its base protecting the sigmoid sinus. The lesion is removed in piecemeal fashion ([Fig. 1]). The neurological monitoring helps.

Results The patient was discharged 2 days later without neurological deficits.

Conclusions The surgical treatment associated with neurological monitoring and neuronavegation is a safe procedure to treat epidermoid cysts in the CPA.

The link to the video can be found at: https://youtu.be/sEuFyq9c2sw.