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Myositis during Borrelia burgdorferi infection (Lyme disease).
  1. J Schoenen,
  2. J Sianard-Gainko,
  3. M Carpentier,
  4. M Reznik
  1. Department of Neurology, University of Liege, Belgium.


    During the second stage of an illness caused by Borrelia burgdorferi, a young woman developed a myopathic syndrome characterised by severe muscular pains, incapacitating weakness of the proximal limb and the neck, as well as the bulbar muscles and elevated serum CK levels. Muscle biopsy revealed a non-inflammatory necrotising myopathy. B. burgdorferi infection was confirmed by a considerable rise of specific IgG antibodies. A course of high dose steroids alleviated the myalgias, but paresis began to improve only after treatment with antibiotics. Our observations confirm that B burgdorferi can cause, through an undertermined mechanism, a necrotising myopathy, in addition to the wide spectrum of already known neurological complications.

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