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  • Title: Nerve ultrasound in a case of multifocal motor neuropathy without conduction block.
    Author: Pitarokoili K, Gold R, Yoon MS.
    Journal: Muscle Nerve; 2015 Aug; 52(2):294-9. PubMed ID: 25620065.
    Abstract:
    INTRODUCTION: Multifocal nerve enlargements and ultrastructural changes either corresponding or not to sites of existing conduction blocks have been described in demyelinating polyneuropathies using multiple imaging techniques. METHODS: Using the emerging technique of peripheral nerve ultrasonography we investigated the peripheral nerves of a patient with multifocal motor neuropathy (MMN) without conduction block. RESULTS: In this case of MMN without conduction blocks we found multifocal nerve enlargements in the ultrasonography and electrodiagnostic signs of acute and chronic denervation associated with positive anti-GM1 IgM antibodies. CONCLUSIONS: This case shows that nerve ultrasound can be a complementary tool for diagnosing multifocal motor neuropathy without typical electrodiagnostic features.
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