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Multifocal motor neuropathy (MMN) is a progressively worsening condition where muscles in the extremities gradually weaken. The disorder, a pure motor neuropathy syndrome, is sometimes mistaken for amyotrophic lateral sclerosis (ALS) because of the similarity in the clinical picture, especially if muscle fasciculations are present.
Motor neurone disease – see Amyotrophic lateral sclerosis; Motor skills disorder; Moyamoya disease; Mucopolysaccharidoses; Multifocal motor neuropathy; Multi-infarct dementia; Multiple sclerosis; Multiple system atrophy; Muscular dystrophy; Myalgic encephalomyelitis; Myasthenia gravis; Myelinoclastic diffuse sclerosis; Myoclonic ...
Peripheral neuropathy may be classified according to the number and distribution of nerves affected (mononeuropathy, mononeuritis multiplex, or polyneuropathy), the type of nerve fiber predominantly affected (motor, sensory, autonomic), or the process affecting the nerves; e.g., inflammation (), compression (compression neuropathy), chemotherapy (chemotherapy-induced peripheral neuropathy).
About Multifocal Motor Neuropathy Multifocal motor neuropathy (MMN) is a rare, chronic autoimmune disease of the peripheral nervous system. The disease is characterized by slowly progressive, asymmetric muscle weakness mainly of the hands, forearms and lower legs.
Atypical cases of CIDP include multifocal acquired demyelinating sensory and motor neuropathy (MADSAM), Lewis-Sumner syndrome (LSS), and distal acquired demyelinating symmetric (DADS). DADS is a sensory or sensorimotor neuropathy that is symmetrical and length-dependent.
Multifocal motor neuropathy (MMN) with conduction block is closely related to CIDP (chronic inflammatory demyelinating polyneuropathy). Anti-GM1 antibodies are positive in around 80% of cases. MMN will present with asymmetrical motor neuropathy where reflexes are usually preserved (or slightly increased), affecting upper limb more than lower limb.
Peripheral neuropathy and mononeuropathy are common neurological disorders, with a diverse range of variables and causes to conclude a diagnosis. [2] Neuropathy has three sub-classifications; mononeuropathy is a result of an entrapped or traumatised nerve or nerve area, Mononeuropathy multiplex is linked to chronic diseases like leprosy, and ...
Motor neuron disease; Motor neuro-ophthalmic disorders; Motor neuropathy peripheral dysautonomia; Motor neuropathy; Motor sensory neuropathy type 1 aplasia cutis congenita; Mounier-Kuhn syndrome; Mount–Reback syndrome; Mousa Al din Al Nassar syndrome; Moyamoya disease