Myasthenia gravis-associated systemic vasculitis and myocarditis with involvement of the cardiac conducting tissue.


We describe unexpected autopsy findings in an elderly woman with myasthenia gravis (MG) who had myocarditis of the working and conducting myocardium and coronary and renal vasculitis. Myasthenia gravis, characterized by autoantibodies to the acetylcholine receptor in the postsynaptic cell membrane, may be associated with other autoimmune disorders. An… (More)