Becker muscular dystrophy
Definition: a hereditary muscle disorder of late onset, usually in the second or third decade, affecting the proximal muscles with characteristic pseudohypertrophy of the calves; clinical features similar to Duchenne muscular dystrophy but much milder and not a genetic lethal; X-linked recessive inheritance, with both Becker and Duchenne dystrophies caused by mutation in the dystrophin gene on Xp.
Synonym(s): adult pseudohypertrophic muscular dystrophy
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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.