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Related Experiment Videos

Primary lateral sclerosis: a case report

M F Beal, E P Richardson

    Archives of Neurology
    |October 1, 1981
    PubMed
    Summary

    Primary Lateral Sclerosis (PLS) is a rare neurological disorder. This case study provides rare pathological confirmation of PLS, detailing its clinical progression and neuropathological findings.

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    Area of Science:

    • Neurology
    • Neuroscience
    • Pathology

    Background:

    • Primary Lateral Sclerosis (PLS) is a rare, progressive motor neuron disease characterized by upper motor neuron degeneration.
    • Clinical diagnosis of PLS is common, but pathological confirmation is infrequent in modern literature.
    • Previous reports of PLS have sometimes been complicated by other neurological events, such as stroke.

    Observation:

    • A 65-year-old woman presented with progressive spastic dysarthria, dysphagia, and pseudobulbar affect.
    • Her condition advanced to a spastic hemiplegia and significant gait disturbance over 3 years.
    • The patient ultimately succumbed to aspiration pneumonia 3.5 years after symptom onset.

    Findings:

    • Neuropathological examination revealed bilateral atrophy of the precentral gyri with a notable paucity of Betz cells.
    • Myelin loss was observed throughout the corticospinal tracts, sparing spinal cord anterior horn cells and hypoglossal nuclei.
    • Unidentified intracytoplasmic eosinophilic inclusion bodies were present in scattered motor neurons.

    Implications:

    • This case provides crucial pathological evidence supporting the clinical diagnosis of Primary Lateral Sclerosis.
    • The findings contribute to understanding the neuropathological hallmarks of PLS.
    • The presence of inclusion bodies warrants further investigation into their role and significance in motor neuron diseases.

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