Fast Five Quiz: Spinal Muscular Atrophy Clinical Presentation

Stephen L. Nelson, Jr, MD, PhD


February 01, 2021

Spinal muscular atrophy (SMA) consists of a group of autosomal-recessive disorders characterized by progressive weakness of the lower motor neurons. Estimates suggest 1 in 6000 to 1 in 10,000 individuals are affected, making SMA the second most common autosomal-recessive inherited disorder after cystic fibrosis. Although no curative treatments for SMA are available, in recent years, effective multidisciplinary care has been shown to improve quality of life and extend life-span in affected patients.

How familiar are you with the clinical presentation of SMA? Test your knowledge with this quick quiz.


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