Journal of Neurological Surgery. Part B, Skull Base
Georg Thieme Verlag KG
image
Epidermoid Cyst in the Cerebellopontine Angle: Technical Description Video
Volume: 80, Issue: Suppl 3
DOI 10.1055/s-0038-1676997
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Highlights

Notes

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 .

Keywords
de Morais, Mota, Marques, Loduca, and Melo: Epidermoid Cyst in the Cerebellopontine Angle: Technical Description Video

Intraoperative images. (
A
) Patient position, (
B
) asterion exposure, (
C
) epidermoid cyst identification, (
D
) lesion removal in piecemeal fashion, (
E
) intraoperative neurological monitoring, (
F
) anatomopathological study confirming the diagnosis.
Fig. 1
Intraoperative images. ( A ) Patient position, ( B ) asterion exposure, ( C ) epidermoid cyst identification, ( D ) lesion removal in piecemeal fashion, ( E ) intraoperative neurological monitoring, ( F ) anatomopathological study confirming the diagnosis.

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Notes

Conflict of Interest: None to disclose.
https://www.researchpad.co/tools/openurl?pubtype=article&doi=10.1055/s-0038-1676997&title=Epidermoid Cyst in the Cerebellopontine Angle: Technical Description Video&author=Marcus Vinicius de Morais,Romulo Almino de Alencar Arrais Mota,Thais Aparecida Marques,Rafael Duarte de Souza Loduca,Paulo Mácio de Porto Melo,&keyword=epidermoid cyst,cerebellopontine angle lesion,cerebellopontine angle microsurgery,epidermoid cyst surgery,&subject=Skull Base: Operative Videos,