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Related Experiment Videos

Encephalomyeloneuritis simulating Guillain-Barré syndrome.

H R Brashear, J M Bonnin, I S Login

    Neurology
    |August 1, 1985
    PubMed
    Summary

    Encephalomyeloneuritis (EMN) can present with central nervous system (CNS) involvement mimicking Guillain-Barré syndrome. Postmortem findings confirmed EMN, suggesting CNS disease is underrecognized in inflammatory polyneuropathy variants.

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    Area of Science:

    • Neurology
    • Pathology
    • Immunology

    Background:

    • Inflammatory polyneuropathies, such as Guillain-Barré syndrome, primarily affect peripheral nerves.
    • Central nervous system (CNS) involvement in these conditions is often considered rare or difficult to diagnose.
    • Encephalomyeloneuritis (EMN) is a rare neurological disorder characterized by inflammation of the brain, spinal cord, and nerves.

    Purpose of the Study:

    • To investigate the case of a patient with clinical and pathological findings suggestive of both severe acute inflammatory polyneuropathy and CNS involvement.
    • To determine the extent and nature of CNS pathology in a patient diagnosed with inflammatory polyneuropathy.
    • To highlight the potential underdiagnosis of CNS involvement in inflammatory polyneuropathy variants.

    Main Methods:

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    • Clinical assessment including neurological examination and laboratory tests.
    • Postmortem neuropathological examination to identify pathological changes.
    • Correlation of clinical findings with postmortem pathological evidence.

    Main Results:

    • The patient presented with features consistent with severe acute inflammatory polyneuropathy (Guillain-Barré syndrome).
    • Clinical signs of CNS involvement were subtle, including transient downbeat nystagmus and specific muscle responses.
    • Postmortem examination confirmed encephalomyeloneuritis (EMN) with characteristic pathological changes, but no systemic neoplasm.
    • The severe peripheral nerve pathology (radiculoneuropathy) obscured the clinical manifestations of the central pathology.

    Conclusions:

    • Pathological confirmation of clinically diagnosed inflammatory polyneuropathy with coexisting CNS disease is uncommon.
    • Encephalomyeloneuritis can present with overlapping features of peripheral neuropathies, potentially masking CNS involvement.
    • CNS disease may be more prevalent than currently appreciated in patients with inflammatory polyneuropathies, particularly in atypical or variant presentations.