| Phenotype details |
Proximal muscle weakness, progressive, lower limbs>upper limbs; Pelvic girdle weakness; Muscle stiffness, lower limbs; Prominent calves, mild; Difficulty walking, running and climbing stairs; Abnormal gait; Fatigue; Lordosis and Scoliosis. EMG-NCV findings are compatible with a mild myopathic process without any spontaneous activity. Muscle biopsy reveals marked chronic myopathic atrophy with some degenerative/regenerative fibers associated with prominent adipose tissue replacement, some inter-myofibrillar network pattern disruption as well as few autophagic vacuoles and multiple lobulated fibers. IHC showed weak labeling of some fibers with dystrophin central rod and N-terminal antibodies and few lysosomal vacuoles are labeled |