Multifocal Motor Neuropathy (MMN) or MMNCB

Multifocal Motor Neuropathy (MMN) or MMNCB

or multifocal motor neuropathy with conduction block is a rare neuropathy characterized by progressive, asymmetric muscle weakness and atrophy.

Multifocal motor neuropathy (MMN) or multifocal motor neuropathy with conduction block (MMNCB) is a rare neuropathy characterized by progressive, asymmetric muscle weakness and atrophy. Signs and symptoms include weakness in the hands and lower arms; cramping; involuntary contractions or twitching; and atrophy of affected muscles. MMN is thought to be due to an abnormal immune response, but the underlying cause is not clear. Most people treated with intravenous immune globulin (IVIG) have rapid improvement in weakness, but maintenance IVIG is usually required for sustained improvement. (source)

(Visited 612 times, 4 visits today)
« Back to Glossary Index