| Phenotype details |
onset congenital, progressive; walks independent; dilated cardiomyopathy; no eye anomalies; no brain abnormalities; mild mental retardation; forced vital capacity normal; muscle weakness proximal upper limb and lower limb, axial; proximal upper limb, neck, paraspinal and scapular muscle atrophy; spinal rigidity; no scapular winging; no scoliosis; serum creatine kinase 1,980-18,900 U/L; muscle biopsy myopathic, dystrophic; muscle imaging normal; EMG myopathic |