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

Updated: May 29, 2019
  • Author: Jeffrey Rosenfeld, MD, PhD, FAAN; Chief Editor: Stephen L Nelson, Jr, MD, PhD, FAACPDM, FAAN, FAAP  more...
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Answer

Patients with disease of the lower motor neurons present with flaccid weakness, hypotonia, decreased or absent deep tendon reflexes, fasciculations, and muscle atrophy.


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