What is the role of focal 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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Muscle disorders

  • Focal myositis [44]

    • This disorder may present with focal or asymmetric weakness and wasting.

    • The myopathy may progress or remain stable.

    • Serum creatine phosphokinase (CPK) may be elevated, and EMG shows brief, small-amplitude, motor unit potentials and fibrillations in the affected muscles.

    • Immunosuppressive therapy may arrest progression.

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