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Intramedullary schwannoma

H Duong¹, D Tampieri, D Melançon

¹Department of Radiology, Montreal Neurological Institute and Hospital, Que.

Canadian Association of Radiologists Journal = Journal L'Association Canadienne Des Radiologistes

|June 1, 1995

Summary

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Intramedullary schwannoma, a rare spinal cord tumor, can be challenging to diagnose via imaging. Early pathological diagnosis is crucial for effective treatment and preventing recurrence.

Area of Science:

Neurology
Oncology
Radiology

Background:

Intramedullary schwannomas are rare tumors arising from nerve sheath cells within the spinal cord.
These tumors can present with neurological deficits, including weakness and pain.

Observation:

Two cases of intramedullary schwannoma involving the thoracic cord and conus medullaris are presented.
Patients experienced lower limb weakness and pain, prompting diagnostic imaging.

Findings:

Standard imaging techniques, including myelography and MRI, failed to provide a definitive diagnosis in both cases.
Pathological examination confirmed intramedullary schwannoma.
Subtotal tumor excision led to recurrence in both patients at 5 and 3 years post-surgery.

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Implications:

Intramedullary schwannoma must be included in the differential diagnosis for spinal cord tumors.
Accurate and timely diagnosis via frozen section during surgical biopsy is critical.
Complete surgical resection and vigilant follow-up are essential to manage recurrence.