| A rare autosomal dominant limb-girdle muscular dystrophy characterized by adult onset of proximal muscle weakness, pain, and wasting predominantly affecting the proximal leg, lumbar paraspinal, and medial gastrocnemius muscles. Upper limb involvement may also be observed in some cases. Serum creatine kinase is often, but not always, elevated, and muscle biopsy shows non-specific myopathic changes. The severity of the disease is variable, although most patients remain ambulatory. |
