What is the role of inclusion body myositis in the etiology of focal muscular atrophy (FMA)?

Updated: Feb 20, 2018
  • Author: Sridharan Ramaratnam, MD, MBBS; Chief Editor: Helmi L Lutsep, MD  more...
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Inclusion body myositis

  • The presence of slowly progressive, asymmetric quadriceps and wrist/finger flexor weakness in a man older than 50 years strongly suggests this diagnosis.

  • Inclusion body myositis is slowly progressive and does not respond well to immunosuppressive medications

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