What is the prevalence of tongue fasciculations in spinal muscle atrophy (SMA)?

Updated: Nov 05, 2018
  • Author: Ashish S Ranade, MBBS, MS, MRCS; Chief Editor: Jeffrey A Goldstein, MD  more...
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Answer

Tongue fasciculations are pathognomonic of SMA (all types), as opposed to all other neuromuscular diseases of infancy. The presence of tongue fasciculations can aid in the diagnosis, in that 56% of patients exhibit this symptom.


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