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Updated: Jun 18, 2026

Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery
Published on: July 5, 2021
Minimally invasive resection of intramedullary ependymoma: case report
Alfred T Ogden1, Richard G Fessler
1The Neurological Institute, Columbia University, New York, New York 10032, USA. ato2@columbia.edu
Objective:
This report illustrates the adequacy of minimally invasive exposure for the resection of an intramedullary ependymoma.
Clinical Presentation:
The patient presented with a history of upper back pain, but a lesion was found during a workup for increased back pain after a motor vehicle accident.
Intervention:
The intramedullary ependymoma was approached using a muscle-splitting retractor and extended hemilaminar exposure. The tumor was removed using conventional techniques.
Conclusion:
This minimally invasive exposure is adequate for selected intramedullary lesions and may be especially useful in patients with a high risk of postlaminectomy deformity.
