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Progressive muscular atrophy

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Symptoms of ALS

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Progressive muscular atrophy (Medical Condition)

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Risdiplam and Spinal Muscular Atrophy

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Motor Neurone Disease (aka ALS/Lou Gehrig's disease) rapid review

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Researching motor neuron disease

Progressive muscular atrophy (PMA), also known as Duchenne-Aran muscular atrophy and by various other names, is a rare subtype of motor neuron disease (MND) that affects only the lower motor neurons. PMA is thought to account for around 4% of all MND cases. This is in contrast to amyotrophic lateral sclerosis (ALS), the most common form of MND, which affects both the upper and lower motor neurones, or primary lateral sclerosis, another rare MND variant, which affects only the upper motor neurons. The distinction is important because PMA is associated with a better prognosis than classic ALS.
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