Dermatomyositis (DM) is a rare inflammatory autoimmune disease for which an iatrogenic origin has been described in a few cases. The authors report a case of DM occurring after simvastatin intake. A 50-year-old male sought medical attention for a photodistributed rash and considerable muscular weakness present for 3 months. One year earlier, simvastatin had been introduced. Serum creatine kinase levels were elevated. Histological examination of a muscle biopsy was consistent with a diagnosis of DM. Investigation for neoplasia and associated autoimmune disease proved negative. All clinical and laboratory abnormalities diminished corticosteroid therapy (1 mg/kg/day). Case reports have suggested that lipid-lowering drugs, especially statins, could induce or reveal chronic muscle diseases. In statins myopathy, reduction of coenzyme Q has been discussed as a key mechanism. Our case of DM in a patient receiving simvastatin adds to the previous reported cases in the literature and highlights the potential role of statins as triggers of immune systemic diseases.
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| http://dx.doi.org/10.1136/bcr.02.2011.3832 | DOI Listing |
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