| Phenotype details |
distal muscle weakness, proximal muscle weakness; CK level 587 IU/L; Rimmed vacuoles in muscle biopsies histochemistry; tripping on small objects, foot drop and sparing of quadriceps; most-affected muscles: Tibialis anterior, iliopsoas, adductors of thigh, hamstrings, and biceps brachi and first dorsal interosseous muscles; no cardiac involvement; 27y-ambulant |