Muscular dystrophy encompasses a diverse group of genetically determined muscle disorders. The first clinical description of the disorder is attributed to Giovanni Semmola, who, in 1829, described 2 boys affected by a disorder with prominent muscular hypertrophy.1 Between1850and1868,Aran, Meryon, and Duchenne described a progressive atrophy of voluntarymuscles, ultimately termed pseudohypertrop...