Which clinical history findings are characteristic of spinal muscular atrophy (SMA)?

Updated: Apr 28, 2014
  • Author: Hidehiro Takei, MD; Chief Editor: Adekunle M Adesina, MD, PhD  more...
  • Print
Answer

Answer

The clinical picture of spinal muscular atrophy (SMA) is highly variable and represents a continuum. The age of onset ranges from before birth to adulthood. The International SMA Consortium has defined 4 clinical types of SMA (I-IV) on the basis of the age of onset and achieved motor functions. [3]


Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!