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A form of limb-girdle muscular dystrophy with characteristics of adolescent or early adulthood-onset of progressive proximal muscle weakness and mild facial muscle weakness, with patients becoming wheelchair bound in their fourth to fifth decade of life. Mild, bilateral winged scapula, incomplete right bundle branch block and a sinus rhythm with very rare ventricular extrasystoles have also been reported. There is evidence this may be caused by homozygous mutation in the DES gene on chromosome 2q35.
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