What are miscellaneous causes 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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  • Inherited enzyme defects - Hexosaminidase A deficiency

  • Immunologic disorders - Dysproteinemia, anti-GM1 antibody

  • Metabolic - Diabetes

  • Toxins -Lead, mercury

  • Endocrine - Thyroid disorders

  • Physical - Radiation and electrical injuries

  • Paraneoplastic - Subacute motor neuronopathy associated with cancer or lymphoma (especially Hodgkin disease)

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