J Korean Neurol Assoc.
2005 Aug;23(4):571-574.
A Case of Multifocal Motor Neuropathy with Conduction Block
- Affiliations
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- 1Department of Neurology, Chungbuk National University College of Medicine, Cheongju, Korea. sslee@chungbuk.ac.kr
- 2Dr. Song's Rehabilitation Clinic, Cheongju, Korea.
Abstract
- Multifocal motor neuropathy with conduction block (MMN) is characterized by a slowly progressive, asymmetrical weakness of the limbs without sensory loss. A differential diagnosis from other motor neuropathies has become increasingly important as MMN has proven to be a treatable disorder. We present a 45-year-old man with longstanding weakness and atrophy of the hand muscles. Electrophysiological studies revealed a typical conduction block in the bilateral median and ulnar nerves. A cycle of intravenous immunoglobulin treatment apparently did not affect the symptoms.
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