Which conditions are included in the differential diagnoses of spinal muscular atrophy (SMA)?

Updated: Apr 28, 2014
  • Author: Hidehiro Takei, MD; Chief Editor: Adekunle M Adesina, MD, PhD  more...
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The differential diagnosis of SMA includes congenital muscular dystrophy, congenital myopathy, congenital neuropathy (eg, congenital hypomyelination neuropathy), disorders of carbohydrate metabolism, myasthenia gravis, and ALS (especially juvenile forms). For SMA types III and IV, a limb-girdle muscular dystrophy is the main differential diagnosis.

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