Causes of chronic muscle weakness in children

Anatomic region	Condition
Cerebral cortex	Brain tumor
	Cerebral palsy
	Juvenile amyotrophic lateral sclerosis and other neurodegenerative disorders*
Spinal cord	Myelomeningocele
	Tethered spinal cord
	Chiari malformations
	Amyotrophic lateral sclerosis
Anterior horn cell	Spinal muscular atrophy
	Postasthmatic amyotrophy
	Amyotrophic lateral sclerosis
Peripheral nerve	Erb palsy
	Heavy metal poisoning
	Congenital peripheral neuropathies
Neuromuscular junction	Myasthenia gravis
Muscle	Congenital myopathies/muscular dystrophy
	Myotonic dystrophy
	Dermatomyositis
	Steroid myopathy
Other	Congenital hypothyroidism
	Cushing syndrome
	Conversion disorder

Chronic_weakness_child.htm

* For example, metachromatic leukodystrophy, Alexander disease, Krabbe disease.

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