Which physical findings are characteristic of spinal muscular atrophy (SMA) type IV - adult-onset form?

Updated: Jan 03, 2017
  • Author: ; Chief Editor: Stephen L Nelson, Jr, MD, PhD, FAACPDM, FAAN, FAAP  more...
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Answer

Patients are similar to those with SMA type III in presentation and clinical findings, though the overall degree of motor weakness is less severe in type IV than in type III.


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