Multifocal motor neuropathy (MMN) is a progressive muscle disorder characterized by muscle weakness in the limbs, with differences from one side of the body to the other in the specific muscles involved. It affects men much more than women.
Symptoms also include muscle wasting, cramping, and involuntary contractions or twitching of the leg muscles.
The disorder is sometimes mistaken for amyotrophic lateral sclerosis (ALS, or Lou Gehrig's disease) but unlike ALS, it is treatable. An early and accurate diagnosis allows patients to recover quickly.
Treatment for multifocal motor neuropathy varies. Some individuals experience only mild, modest symptoms and require no treatment. For others, treatment generally consists of intravenous immunoglobulin (IVIg) or immunosuppressive therapy with cyclophosphamide.
Improvement in muscle strength usually begins within 3 to 6 weeks after treatment is started. Most patients who receive treatment early experience little, if any, disability. However, there is evidence of slow progression over many years.
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Neurology & Headache Center
822 Pine Street, Suite 1C
Philadelphia, PA 19107
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