Acute autoimmune myocarditis as a manifestation of Graves' disease: A case report and review of the literature.

Acute myocarditis and hyperthyroidism are common diseases that often present in young, otherwise healthy patients. Autoimmunity is central to the pathogenesis of both. Patients presenting with acute myocarditis should be screened for symptoms of hyperthyroidism, and physicians should consider screening for myocarditis in patients with hyperthyroidism and persistent cardiac symptoms.