Giant-cell myocarditis presented simulating apical myocardial infarction

We present a case of a 57-year-old man with a giant-cell myocarditis that m ade its debut as a sustained ventricular polymorphic tachycardia interprete d in the context of old apical myocardium infarct, with a posterior evoluti on towards refractary heart failure, which finally needed urgent cardiac tr ansplantation. We explain the characteristics of this unusual myocarditis, which has a poo r prognosis, and also the results of the laboratory techniques that led to an equivocal diagnosis in this patient.