Extended Retrosigmoid Approach in the Sitting Position for Resection of A Petroclival Meningioma
Abstract
This video demonstrates the resection of a large petroclival meningioma via an extended retrosigmoid approach in the sitting position. The tumor compressed the brainstem, effaced the fourth ventricle, and extended into Meckel’s cave and the internal auditory canal. A gravity-assisted, piecemeal resection was performed with bimanual dissection and preservation of brainstem perforators. Postoperative MRI confirmed gross total resection with minimal residual at the IAC and complete brainstem decompression. The patient had no neurological deficits. Publication History Article published online: 27 February 2026 © 2026. Thieme. All rights reserved. Georg Thieme Verlag KG Oswald-Hesse-Straße 50, 70469 Stuttgart, Germany
Fields of Study & Subjects
Meningioma and schwannoma management
Neurosurgical Procedures and Complications
Pituitary Gland Disorders and Treatments
Publication details
- Journal / source
- Journal of Neurological Surgery Part B Skull Base
- Volume
- 87
- Issue
- S 01
- Pages
- S1–S548
- Publication date
- 27 February 2026
- Language
- EN