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Myositis Mimics: The Differential Diagnosis of Myositis

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Managing Myositis

Abstract

Abstract: Autoimmune myopathies are a heterogeneous family of diseases characterized by muscle weakness, elevated serum muscle enzymes, and muscle biopsies revealing inflammation and/or necrosis. Since patients with inherited muscle disease, inclusion body myositis, endocrine myopathies, and toxic myopathies can present with similar clinical features, they may be misdiagnosed with autoimmune myopathy and unnecessarily treated with immunosuppressive agents. Here, we review those entities most likely to be misdiagnosed as an autoimmune myopathy, highlighting features that distinguish them and providing guidance about how to properly diagnose them (Table 23.1).

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Michelle, H., Mammen, A.L. (2020). Myositis Mimics: The Differential Diagnosis of Myositis. In: Aggarwal, R., Oddis, C. (eds) Managing Myositis. Springer, Cham. https://doi.org/10.1007/978-3-030-15820-0_23

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