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Multiple schwannomas in the radial nerve

K Tanabe¹, K Tada, H Ninomiya

¹Department of Orthopaedic Surgery, Osaka Rosai Hospital, Wakayama, Japan.

Journal of Hand Surgery (Edinburgh, Scotland)

|September 30, 1998

Summary

Multiple schwannomas, rare tumors of the radial nerve, were identified using magnetic resonance imaging (MRI). The study recommends full limb MRI for major nerve schwannomas due to potential asymptomatic multiplicity.

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Area of Science:

Neurology
Oncology
Radiology

Background:

Schwannomas are typically solitary tumors arising from Schwann cells of peripheral nerves.
Multiple schwannomas in a single major nerve trunk are exceptionally uncommon.

Observation:

A rare case of multiple schwannomas affecting the radial nerve is presented.
Magnetic resonance imaging (MRI) proved instrumental in the detection and characterization of these tumors.

Findings:

The presence of multiple schwannomas within the radial nerve highlights an unusual presentation of this nerve sheath tumor.
Diagnostic imaging, specifically MRI, is crucial for identifying these lesions, especially when they are asymptomatic.

Implications:

The findings suggest that a high index of suspicion for multiplicity is warranted when encountering schwannomas in major peripheral nerves.
Comprehensive MRI evaluation of the entire affected limb is recommended for patients diagnosed with a schwannoma in a major upper extremity nerve to rule out additional, potentially asymptomatic, lesions.

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