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["Drop hand" resulting from cerebral infarction--case report].

K Takamiya, K Takahashi, M Kaminogo

    Rinsho Shinkeigaku = Clinical Neurology
    |June 1, 1989
    PubMed
    Summary

    A stroke caused a 52-year-old man

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    Area of Science:

    • Neurology
    • Neuroscience
    • Radiology

    Background:

    • Understanding the differential diagnosis between central and peripheral nerve involvement is crucial for accurate patient management.
    • Cerebral infarction can manifest with diverse neurological deficits, sometimes mimicking peripheral nerve injuries.

    Observation:

    • A 52-year-old male presented with progressive weakness and flexion of the right hand and fingers.
    • Initial brain computed tomography (CT) was normal, but follow-up CT and MR imaging revealed a left frontoparietal lesion consistent with cerebral infarction.
    • No sensory deficit was noted in the right wrist.

    Findings:

    • The patient was diagnosed with "Pseudoradial nerve palsy" due to a cerebral infarction.
    • The neurological deficits were attributed to a central nervous system lesion rather than a peripheral nerve injury.

    Implications:

    • This case highlights the importance of advanced neuroimaging in diagnosing stroke presenting with atypical peripheral nerve-like symptoms.
    • Differentiating central from peripheral neurological deficits requires careful clinical evaluation and appropriate diagnostic imaging.
    • Recognizing "Pseudoradial nerve palsy" as a potential manifestation of cerebral infarction can prevent misdiagnosis and delayed treatment.

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