Phenotype details |
childhood-onset exertional myalgia, calf enlargement, asymmetric weakness (mainly quads, flexor digitorum profundus); raised CK level 683 IU/L; electrodiagnosis myopathic with fibrillation potentials; myotonic dischargers (paraspinals); muscle biopsy autoaggressive inflammation, rimmed vacuoles, congophilic inclusions, reduced caveolin-3 immunoreactivity |