Becker muscular dystrophy (BMD): differential diagnosis
Written and reviewed by Dr Ibrahim Imam, Consultant Neurologist. Last reviewed .
Becker muscular dystrophy (BMD): differential diagnosis. Gower’s sign is seen in about 37%: it is in about 90% in DMD.
Duchenne muscular dystrophy (DMD)
- The mean onset age is about 9 years: it is about 3 years in DMD
- Gower’s sign is seen in about 37%: it is in about 90% in DMD
- Calf pseudohypertrophy is present in about 60%: it is in >90% in DMD
- Contractures occur in about 20%: they are seen in >60% of DMD
- Cardiomyopathy is present in about 4%: it is in about 6% in DMD
- Scoliosis develops in about 8%: it is in about 15% in DMD
- Wheelchair use is in about 8%: it is in >35% in DMD
- Respiratory function is preserved: unlike in DMD
Others
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References
- Wang , Yang X, Yan Y, Song N, Lin C, Jin C. Duchenne or Becker muscular dystrophy: a clinical, genetic and immunohistochemical study in China. Neurol India 2011; 59:797-802.
- Beltran Papsdorf T, Howard JF Jr, Chahin N. Late-onset Becker muscular dystrophy: refining the clinical features and electrophysiological findings. Muscle Nerve 2015; 52:885-887.
