Foramen magnum meningioma approached by the midline subtonsilar approach - Revisiting Cushing's classification of craniospinal meningiomas
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Updated: Aug 7, 2025
Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery
Published on: July 5, 2021
Roberto Leal da Silveira1, Daniela de Oliveira Von Zuben2, Raphael Bertani2
1Department of Neurosurgery, Madre Teresa Hospital, Belo Horizonte, São Paulo, Brazil.
Background:
The management of foramen magnum meningiomas (FMMs) has been a challenge for skull base neurosurgeons. Since the initial description of a FMM in 1872, various surgical approaches have been described. Posterior and posterolateral FMMs are safely removed through a standard midline suboccipital approach. Nevertheless, we still face controversy regarding the management of anterior or anterolateral lesions.
Case Description:
A 47-year-old patient presented with progressive headaches, unsteadiness, and tremor. Magnetic resonance imaging showed an FMM that caused significant displacement of the brainstem.
Conclusion:
This operative video highlights a safe and effective surgical technique for the resection of an anterior foramen magnum meningioma.
