Abstract Myocarditis in children and adolescents is an inflammatory myocardial disease with a heterogeneous presentation ranging from oligosymptomatic, with no impaired ejection fraction to catastrophic clinical presentation with cardiogenic shock (fulminant myocarditis) or sudden death. Thus, this condition remains a major challenge from the diagnostic and therapeutic points of view. Despite the different etiologies listed, the most frequent form may be related to viral diseases, and new forms of myocarditis, such allergic ones (eosinophilic and use of medications, particularly cancer […]