Case Presentation: Statin-induced necrotizing autoimmune myopathy (SINAM) is an immune mediated myopathy characterized by proximal muscle weakness and necrosis in the presence of autoantibodies to hydroxyl-methyl-glutaryl-coenzyme-A (HMG-CoA) reductase. It is a rare side effect of statin use that must be recognized quickly in order to prevent the development of irreversible muscle weakness. Most cases occur [...]

Case Presentation: Rheumatoid myositis is often underdiagnosed due to its variable laboratory, MRI, and biopsy findings and often misdiagnosed as idiopathic polymyositis.50-year-old female with seronegative RA and vocal cord dysfunction after COVID-19 infection presented with worsening proximal muscle weakness, dysphagia, and arthritis. A few years back she had multiple episodes of bilateral MCP swelling and [...]