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Hypertrophic perineurial dysplasia in multifocal and generalized peripheral neuropathies
P K Thomas1, R H King, J M Workman
1University Department of Clinical Neurology, Institute of Neurology, London, UK.
Neuropathology and Applied Neurobiology
|December 21, 2000
Summary
Two rare cases of peripheral neuropathy with unusual perineurial changes were identified. Investigations failed to determine the cause, suggesting a non-specific response to neuropathy.
Area of Science:
- Neurology
- Pathology
- Genetics
Background:
- Peripheral neuropathies encompass a diverse group of disorders affecting the peripheral nervous system.
- Understanding the underlying pathology is crucial for diagnosis and management.
Observation:
- Two distinct cases of peripheral neuropathy are presented: one adult-onset multifocal cranial and limb neuropathy with optic neuropathy, and one childhood-onset diffuse demyelinating neuropathy with congenital cataract and mental retardation.
- No familial link was identified in either case.
Findings:
- Extensive investigations in both cases did not reveal the specific etiology.
- Nerve biopsies demonstrated similar perineurial abnormalities, including hypertrophic and dysplastic perineurial cells compartmentalizing the endoneurium.
- These findings suggest an unusual, potentially non-specific, response to peripheral neuropathy.
Implications:
- The observed perineurial changes may represent a distinct pathological pattern in certain peripheral neuropathies.
- Further research is needed to elucidate the specific mechanisms and potential genetic factors involved.
- These findings contribute to the understanding of rare neurological disorders and their pathological underpinnings.
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