What is in the Myopathy Literature?

This update begins with muscle manifestations of coronavirus 2019. They may include myalgias and elevations in serum creatine kinase. It is unknown whether there is direct muscle invasion and how often the critically ill have muscle sequelae. Regarding autoimmune myopathies, a retrospective study of statin-induced necrotizing myopathy is covered. A relatively large proportion of patients had normal strength at presentation. Examples of dermatomyositis associated with immune checkpoint inhibitors are provided including one with cytokine storm. A report of juvenile dermatomyositis with severe abdominal complications is noteworthy. Two articles address unusual associations with inclusion body myositis, namely, spinocerebellar ataxias and granuloma myositis. In the category of muscular dystrophies, a relatively large single center study of the outcome of scapulothoracic arthrodesis for facioscapulohumeral muscular dystrophy is discussed and a article on anoctaminopathies with pauci- or asymptomatic hyperCKemia.

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