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An unusual variant of Becker muscular dystrophy
M de Visser1, E Bakker, J C Defesche
1Department of Neurology, University of Amsterdam, The Netherlands.
Annals of Neurology
|May 1, 1990
Abstract:
We report on 5 brothers with slowly progressive limbgirdle weakness. Calf hypertrophy was absent. The levels of creatine kinase, electromyography, and findings from a muscle biopsy specimen were compatible with muscular dystrophy. The propositus's biopsy specimen also showed numerous rimmed vacuoles. DNA analysis revealed a deletion in the dystrophin gene, establishing a diagnosis of Becker muscular dystrophy. Both the absence of calf hypertrophy and the presence of rimmed vacuoles are unusual features in this disorder.