Multifocal motor neuropathy

Multifocal Motor Neuropathy (pronunciation: mul-ti-fo-cal mo-tor neu-ro-pa-thy) is a rare neuromuscular disorder characterized by progressive asymmetric muscle weakness and atrophy.

Etymology

The term "Multifocal Motor Neuropathy" is derived from the Latin words "multi" meaning many, "focalis" meaning having a focus, "motor" referring to movement, and "neuropathy" meaning nerve disease.

Definition

Multifocal Motor Neuropathy (MMN) is a condition where multiple motor nerves are affected, leading to muscle weakness and wasting. It is a form of peripheral neuropathy, meaning it affects the nerves outside the brain and spinal cord.

Symptoms

The symptoms of MMN are primarily related to muscle weakness, and can include difficulty with tasks such as buttoning a shirt, turning a key, or holding a pen. Other symptoms may include muscle cramps, twitching, and fatigue.

Causes

The exact cause of MMN is unknown, but it is thought to be an autoimmune disease, where the body's immune system mistakenly attacks its own nerves.

Diagnosis

Diagnosis of MMN is typically based on a combination of clinical symptoms, nerve conduction studies, and sometimes nerve biopsy. Other conditions such as Amyotrophic Lateral Sclerosis (ALS) and Chronic Inflammatory Demyelinating Polyneuropathy (CIDP) must be ruled out.

Treatment

Treatment for MMN typically involves immunosuppressive therapy, such as intravenous immunoglobulin (IVIG), and physical therapy to help manage symptoms.

Related Terms

External links

Medical encyclopedia article on Multifocal motor neuropathy
Wikipedia's article - Multifocal motor neuropathy

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