Basic Summary for Monomelic Amyotrophy


Main name of condition: Monomelic Amyotrophy
Other names or spellings: MMA, Benign Focal Amyotrophy, Hirayama Syndrome

What is Monomelic Amyotrophy?
  Brief description of Monomelic Amyotrophy: Rare motor neuron disease with good prognosis.
  Parent types of Monomelic Amyotrophy: Motor neuron disease, Motor neuron diseases
  Organs Affected by Monomelic Amyotrophy: nerves
  Types of Monomelic Amyotrophy: O'Sullivan-McLeod syndrome
Who gets Monomelic Amyotrophy?
  Patient Profile for Monomelic Amyotrophy: Typically males 15-25.
  Gender Profile for Monomelic Amyotrophy: Mostly males.
  Geography Profile for Monomelic Amyotrophy: More common in Asia than the USA
How serious is Monomelic Amyotrophy?
  Prognosis of Monomelic Amyotrophy: The symptoms of MMA usually progress slowly for one to two years before reaching a plateau, then remain stable for many years. Disability is generally slight. Occasionally, the weakness progresses to the opposite limb. There is also a slowly progressive variant of MMA known as O'Sullivan-McLeod syndrome, which affects the small muscles of the hand and forearm and has a slowly progressive course. 1
What are the symptoms of Monomelic Amyotrophy?
  Symptoms of Monomelic Amyotrophy: see symptoms of Monomelic Amyotrophy
How is it treated?
  Treatments for Monomelic Amyotrophy: see treatments for Monomelic Amyotrophy

1. excerpt from NINDS Monomelic Amyotrophy Information Page: NINDS

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