COVID-19 IgG-related autoimmune inflammatory necrotizing myositis

The COVID-19 pandemic caused by the SARS-CoV-2 virus has affected millions of people around the globe. The most common presentation of COVID-19 is fever and upper and lower respiratory tract infection. Myalgia is fairly common in the prodromal phase of the viral illness which self-resolves. There is very scant literature on autoimmune myositis triggered by COVID-19 infection. We report a case of SARS-CoV-2 infection, who presented with progressive muscle weakness with rhabdomyolysis and necrotizing autoimmune myopathy on muscle biopsy. This case report imposes awareness of musculoskeletal autoimmune processes triggered by COVID-19 which requires clinical suspicion for early diagnosis and initiation of treatment.