Duchenne Muscular Dystrophy (DMD) is an X-linked, recessive disorder characterized by progressive muscular weakness, Gower sign, waddling gait and pseudohypertrophy of the calf muscles. Little is reported about DMD manifestations in females because of its' X-linked, recessive inheritance. The authors described a 12-year-old female with gait disturbance. Her symptoms were diminished muscle power, decreased deep tendon reflexes, Gower sign andpseudohypertrophy of calf muscle. Serum creatinine kinase level was elevated to 1,674 U/ml. Electromyographic findings were compatible with myopathy. Histopathologic examination of the muscles confirmed the diagnosis of DMD. The result of karyotyping was 45X, but multiplex PCR (Polymerase Chain Reaction) analysis showed normal findings. (J Korean Acad Rehab Med 2005; 29: 537-540)
