Acute Concomitant Presentation Of Polymyositis And Atypical Myasthenia Gravis: A Diagnostic Challenge

Inflammatory myopathies (IM) [1] and myasthenia gravis (MG) [2] are autoimmune disorders presenting with muscle weakness. Their coexistence is infrequent, and the myasthenia-myositis clinical spectrum has emerged as a novel concept [3]. A 66-year-old woman with postoperative hypothyroidism presented with acute onset muscle pain in limbs starting two weeks earlier.